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Gale Warning 0036
Issued by the Gaylord Forecast Office

Action Issued Starts Expiration
New 2025-12-17 02:49:10 2025-12-17 23:00:00 2025-12-19 09:00:00
Continued 2025-12-17 03:05:40 2025-12-17 23:00:00 2025-12-19 09:00:00
Continued 2025-12-17 10:48:46 2025-12-17 23:00:00 2025-12-19 09:00:00
Continued 2025-12-17 14:04:21 2025-12-17 23:00:00 2025-12-19 09:00:00
Continued 2025-12-17 21:35:31 2025-12-17 23:00:00 2025-12-19 09:00:00
Continued 2025-12-18 01:03:36 2025-12-19 09:00:00
Time and Area Extended 2025-12-18 09:19:44 2025-12-18 22:00:00 2025-12-19 11:00:00
Time and Area Extended 2025-12-18 09:19:44 2025-12-18 22:00:00 2025-12-19 18:00:00
Continued 2025-12-18 09:19:44 2025-12-19 09:00:00
Continued 2025-12-18 13:48:51 2025-12-18 22:00:00 2025-12-19 18:00:00
Continued 2025-12-18 13:48:51 2025-12-19 09:00:00
Continued 2025-12-18 13:48:51 2025-12-18 22:00:00 2025-12-19 11:00:00
Continued 2025-12-18 22:03:33 2025-12-19 09:00:00
Continued 2025-12-18 22:03:33 2025-12-19 11:00:00
Continued 2025-12-18 22:03:33 2025-12-19 18:00:00
Time Extended 2025-12-19 02:00:48 2025-12-19 15:00:00
Continued 2025-12-19 02:00:48 2025-12-19 18:00:00
Time Extended 2025-12-19 02:00:48 2025-12-19 15:00:00
Continued 2025-12-19 09:09:14 2025-12-19 18:00:00
Continued 2025-12-19 09:09:14 2025-12-19 15:00:00
Continued 2025-12-19 09:09:14 2025-12-19 15:00:00
Continued 2025-12-19 14:17:53 2025-12-19 18:00:00
Continued 2025-12-19 14:17:53 2025-12-19 18:00:00
Continued 2025-12-19 14:17:53 2025-12-19 15:00:00
Continued 2025-12-19 14:17:53 2025-12-19 15:00:00
Time Extended 2025-12-19 14:17:53 2025-12-19 18:00:00
Expired 2025-12-19 15:08:25 2025-12-19 15:00:00
Continued 2025-12-19 15:08:25 2025-12-19 18:00:00
Continued 2025-12-19 15:08:25 2025-12-19 18:00:00
Expired 2025-12-19 15:08:25 2025-12-19 15:00:00
Continued 2025-12-19 15:08:25 2025-12-19 18:00:00
Expired 2025-12-19 18:14:59 2025-12-19 18:00:00
Expired 2025-12-19 18:14:59 2025-12-19 18:00:00
Expired 2025-12-19 18:14:59 2025-12-19 18:00:00


Action: New
Issued At: 2025-12-17 02:49:10

188 
WHUS73 KAPX 170848
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
348 AM EST Wed Dec 17 2025

LMZ323-341-342-344>346-171945-
/O.CAN.KAPX.GL.W.0035.000000T0000Z-251217T0900Z/
/O.NEW.KAPX.GL.W.0036.251218T0500Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
348 AM EST Wed Dec 17 2025

...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM EST
FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 11 feet expected.

* WHERE...Portions of Lake Michigan. 

* WHEN...From midnight tonight to 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...Winds will shift from the southwest to the  
  northwest Thursday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>348-171700-
/O.CON.KAPX.GL.W.0035.000000T0000Z-251217T1700Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-
348 AM EST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY...

* WHAT...Highest gusts up to 35 kts from the west and highest 
  waves around 8 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary.

* WHEN...Until noon EST today.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ349-171400-
/O.CON.KAPX.GL.W.0035.000000T0000Z-251217T1400Z/
Sturgeon Pt to Alabaster MI-
348 AM EST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING...

* WHAT...Highest gusts up to 35 kts from the west and highest 
  waves around 5 feet.

* WHERE...Sturgeon Pt to Alabaster MI.

* WHEN...Until 9 AM EST this morning.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-171500-
/O.CON.KAPX.GL.W.0035.000000T0000Z-251217T1500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
348 AM EST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING...

* WHAT...Highest gusts up to 35 kts from the northwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 10 AM EST this morning.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-17 03:05:40

697 
WHUS73 KAPX 170905
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
405 AM EST Wed Dec 17 2025

LMZ323-341-342-344>346-171715-
/O.NEW.KAPX.SC.Y.0127.251217T0905Z-251217T1700Z/
/O.CON.KAPX.GL.W.0036.251218T0500Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
405 AM EST Wed Dec 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EST TODAY...
...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
EST FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the northwest and highest waves around 8 feet. For 
  the Gale Warning, Highest gusts up to 40 kts from the 
  southwest and highest waves around 11 feet expected.

* WHERE...Portions of Lake Michigan. 

* WHEN...For the Small Craft Advisory, until noon EST today. For 
  the Gale Warning, from midnight tonight to 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>348-171700-
/O.CON.KAPX.GL.W.0035.000000T0000Z-251217T1700Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-
405 AM EST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY...

* WHAT...Highest gusts up to 35 kts from the west and highest 
  waves around 8 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary.

* WHEN...Until noon EST today.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ349-171400-
/O.CON.KAPX.GL.W.0035.000000T0000Z-251217T1400Z/
Sturgeon Pt to Alabaster MI-
405 AM EST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING...

* WHAT...Highest gusts up to 35 kts from the west and highest 
  waves around 4 feet.

* WHERE...Sturgeon Pt to Alabaster MI.

* WHEN...Until 9 AM EST this morning.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-171500-
/O.CON.KAPX.GL.W.0035.000000T0000Z-251217T1500Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
405 AM EST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING...

* WHAT...Highest gusts up to 35 kts from the northwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 10 AM EST this morning.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-17 10:48:46

129 
WHUS73 KAPX 171648
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1148 AM EST Wed Dec 17 2025

LHZ345>348-180100-
/O.CAN.KAPX.GL.W.0035.000000T0000Z-251217T1700Z/
/O.NEW.KAPX.SC.Y.0128.251218T0500Z-251219T1500Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-
1148 AM EST Wed Dec 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
EST FRIDAY...

* WHAT...Highest gusts up to 30 kts from the southwest and 
  highest waves around 10 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary.

* WHEN...From midnight tonight to 10 AM EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ323-341-342-344>346-180100-
/O.CAN.KAPX.SC.Y.0127.000000T0000Z-251217T1700Z/
/O.CON.KAPX.GL.W.0036.251218T0500Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1148 AM EST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 12 feet expected.

* WHERE...Portions of Lake Michigan. 

* WHEN...From midnight tonight to 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ349-LSZ321-322-180100-
/O.NEW.KAPX.SC.Y.0128.251218T0500Z-251219T1500Z/
Sturgeon Pt to Alabaster MI-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1148 AM EST Wed Dec 17 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
EST FRIDAY...

* WHAT...Highest gusts up to 30 kts from the south and highest 
  waves around 9 feet expected.

* WHERE...In Lake Huron, Sturgeon Pt to Alabaster MI. In Lake 
  Superior, Whitefish Bay (U. S. Portion)/Whitefish Point to 
  Point Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...From midnight tonight to 10 AM EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-17 14:04:21

499 
WHUS73 KAPX 172003
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
303 PM EST Wed Dec 17 2025

LMZ323-341-342-344>346-180415-
/O.CON.KAPX.GL.W.0036.251218T0500Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
303 PM EST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
EST FRIDAY...

* WHAT...Highest gusts up to 45 kts from the southwest and 
  highest waves around 11 feet expected.

* WHERE...Portions of Lake Michigan. 

* WHEN...From midnight tonight to 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>349-LSZ321-322-180415-
/O.CON.KAPX.SC.Y.0128.251218T0500Z-251219T1500Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
303 PM EST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 35 kts from the southwest and 
  highest waves around 11 feet expected.

* WHERE...Portions of Lake Huron and Lake Superior. 

* WHEN...From midnight tonight to 10 AM EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-17 21:35:31

906 
WHUS73 KAPX 180335
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1035 PM EST Wed Dec 17 2025

LMZ323-341-342-344>346-181415-
/O.CON.KAPX.GL.W.0036.251218T0500Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1035 PM EST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 13 feet expected.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>349-LSZ321-322-181415-
/O.CON.KAPX.SC.Y.0128.251218T0500Z-251219T1500Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1035 PM EST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
FRIDAY...

* WHAT...Highest gusts up to 35 kts from the south and highest 
  waves around 10 feet expected.

* WHERE...Portions of Lake Huron and Lake Superior. 

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 01:03:36

495 
WHUS73 KAPX 180703
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
203 AM EST Thu Dec 18 2025

LMZ323-341-342-344>346-181845-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
203 AM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 12 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>349-LSZ321-322-181845-
/O.CON.KAPX.SC.Y.0128.000000T0000Z-251219T1500Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
203 AM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
FRIDAY...

* WHAT...Highest gusts up to 35 kts from the southwest and 
  highest waves around 10 feet.

* WHERE...Portions of Lake Huron and Lake Superior. 

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Time and Area Extended
Issued At: 2025-12-18 09:19:44

567 
WHUS73 KAPX 181519
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1019 AM EST Thu Dec 18 2025

LHZ345>349-182330-
/O.EXT.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.EXB.KAPX.GL.W.0036.251219T0400Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1019 AM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST
FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 11 feet. For the 
  Gale Warning, Highest gusts up to 40 kts from the west and 
  highest waves around 11 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to 7 PM 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-182330-
/O.EXT.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.EXB.KAPX.GL.W.0036.251219T0400Z-251219T1700Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1019 AM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO NOON EST
FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the south and highest waves around 5 feet. For the 
  Gale Warning, Highest gusts up to 35 kts from the northwest 
  and highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to noon 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-341-342-344>346-182330-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1019 AM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 12 feet.

* WHERE...Portions of Lake Michigan.

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Time and Area Extended
Issued At: 2025-12-18 09:19:44

567 
WHUS73 KAPX 181519
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1019 AM EST Thu Dec 18 2025

LHZ345>349-182330-
/O.EXT.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.EXB.KAPX.GL.W.0036.251219T0400Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1019 AM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST
FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 11 feet. For the 
  Gale Warning, Highest gusts up to 40 kts from the west and 
  highest waves around 11 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to 7 PM 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-182330-
/O.EXT.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.EXB.KAPX.GL.W.0036.251219T0400Z-251219T1700Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1019 AM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO NOON EST
FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the south and highest waves around 5 feet. For the 
  Gale Warning, Highest gusts up to 35 kts from the northwest 
  and highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to noon 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-341-342-344>346-182330-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1019 AM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 12 feet.

* WHERE...Portions of Lake Michigan.

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 09:19:44

567 
WHUS73 KAPX 181519
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1019 AM EST Thu Dec 18 2025

LHZ345>349-182330-
/O.EXT.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.EXB.KAPX.GL.W.0036.251219T0400Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1019 AM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 7 PM EST
FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 11 feet. For the 
  Gale Warning, Highest gusts up to 40 kts from the west and 
  highest waves around 11 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to 7 PM 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-182330-
/O.EXT.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.EXB.KAPX.GL.W.0036.251219T0400Z-251219T1700Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1019 AM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO NOON EST
FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the south and highest waves around 5 feet. For the 
  Gale Warning, Highest gusts up to 35 kts from the northwest 
  and highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to noon 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-341-342-344>346-182330-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1019 AM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 12 feet.

* WHERE...Portions of Lake Michigan.

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 13:48:51

045 
WHUS73 KAPX 181948
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
248 PM EST Thu Dec 18 2025

LHZ345>349-190400-
/O.CON.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.251219T0400Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
248 PM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 7 PM
EST FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 11 feet. For the 
  Gale Warning, Highest gusts up to 40 kts from the west and 
  highest waves around 11 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to 7 PM 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-190400-
/O.CON.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.251219T0400Z-251219T1700Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
248 PM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO NOON
EST FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the south and highest waves around 5 feet. For the 
  Gale Warning, Highest gusts up to 35 kts from the northwest 
  and highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to noon 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-341-342-344>346-190400-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
248 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 12 feet.

* WHERE...Portions of Lake Michigan.

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 13:48:51

045 
WHUS73 KAPX 181948
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
248 PM EST Thu Dec 18 2025

LHZ345>349-190400-
/O.CON.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.251219T0400Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
248 PM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 7 PM
EST FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 11 feet. For the 
  Gale Warning, Highest gusts up to 40 kts from the west and 
  highest waves around 11 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to 7 PM 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-190400-
/O.CON.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.251219T0400Z-251219T1700Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
248 PM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO NOON
EST FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the south and highest waves around 5 feet. For the 
  Gale Warning, Highest gusts up to 35 kts from the northwest 
  and highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to noon 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-341-342-344>346-190400-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
248 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 12 feet.

* WHERE...Portions of Lake Michigan.

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 13:48:51

045 
WHUS73 KAPX 181948
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
248 PM EST Thu Dec 18 2025

LHZ345>349-190400-
/O.CON.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.251219T0400Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
248 PM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 7 PM
EST FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 11 feet. For the 
  Gale Warning, Highest gusts up to 40 kts from the west and 
  highest waves around 11 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to 7 PM 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-190400-
/O.CON.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.251219T0400Z-251219T1700Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
248 PM EST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO NOON
EST FRIDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the south and highest waves around 5 feet. For the 
  Gale Warning, Highest gusts up to 35 kts from the northwest 
  and highest waves around 10 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Small Craft Advisory, until 11 PM EST this 
  evening. For the Gale Warning, from 11 PM this evening to noon 
  EST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-341-342-344>346-190400-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
248 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 12 feet.

* WHERE...Portions of Lake Michigan.

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 22:03:33

477 
WHUS73 KAPX 190402
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1102 PM EST Thu Dec 18 2025

LHZ345>349-191430-
/O.EXP.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1102 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...Highest gusts up to 45 kts from the west and highest 
  waves around 10 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 7 PM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-191430-
/O.EXP.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1700Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1102 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON EST FRIDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 9 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until noon EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-341-342-344>346-191430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1102 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 11 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 22:03:33

477 
WHUS73 KAPX 190402
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1102 PM EST Thu Dec 18 2025

LHZ345>349-191430-
/O.EXP.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1102 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...Highest gusts up to 45 kts from the west and highest 
  waves around 10 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 7 PM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-191430-
/O.EXP.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1700Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1102 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON EST FRIDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 9 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until noon EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-341-342-344>346-191430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1102 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 11 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 22:03:33

477 
WHUS73 KAPX 190402
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1102 PM EST Thu Dec 18 2025

LHZ345>349-191430-
/O.EXP.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1102 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...Highest gusts up to 45 kts from the west and highest 
  waves around 10 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 7 PM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-191430-
/O.EXP.KAPX.SC.Y.0128.000000T0000Z-251219T0400Z/
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1700Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1102 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON EST FRIDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 9 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until noon EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-341-342-344>346-191430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T1500Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1102 PM EST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 11 feet.

* WHERE...Portions of Lake Michigan. 

* WHEN...Until 10 AM EST Friday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Time Extended
Issued At: 2025-12-19 02:00:48

812 
WHUS73 KAPX 190800
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
300 AM EST Fri Dec 19 2025

LMZ323-341-342-344>346-192100-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.NEW.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
300 AM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, Highest gusts up to 40 kts from 
  the northwest and highest waves around 12 feet. For the Gale 
  Watch, Highest gusts up to 40 kts from the west and highest 
  waves around 12 feet possible.

* WHERE...Portions of Lake Michigan. 

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-192100-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
300 AM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WHAT...Highest gusts up to 35 kts from the northwest and 
  highest waves around 10 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 4 PM EST this afternoon.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>349-192100-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
300 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 45 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 02:00:48

812 
WHUS73 KAPX 190800
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
300 AM EST Fri Dec 19 2025

LMZ323-341-342-344>346-192100-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.NEW.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
300 AM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, Highest gusts up to 40 kts from 
  the northwest and highest waves around 12 feet. For the Gale 
  Watch, Highest gusts up to 40 kts from the west and highest 
  waves around 12 feet possible.

* WHERE...Portions of Lake Michigan. 

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-192100-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
300 AM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WHAT...Highest gusts up to 35 kts from the northwest and 
  highest waves around 10 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 4 PM EST this afternoon.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>349-192100-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
300 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 45 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Time Extended
Issued At: 2025-12-19 02:00:48

812 
WHUS73 KAPX 190800
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
300 AM EST Fri Dec 19 2025

LMZ323-341-342-344>346-192100-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.NEW.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
300 AM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, Highest gusts up to 40 kts from 
  the northwest and highest waves around 12 feet. For the Gale 
  Watch, Highest gusts up to 40 kts from the west and highest 
  waves around 12 feet possible.

* WHERE...Portions of Lake Michigan. 

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-192100-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
300 AM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WHAT...Highest gusts up to 35 kts from the northwest and 
  highest waves around 10 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 4 PM EST this afternoon.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>349-192100-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
300 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 45 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 09:09:14

357 
WHUS73 KAPX 191509
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1009 AM EST Fri Dec 19 2025

LMZ323-341-342-344>346-192315-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1009 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, Highest gusts up to 45 kts from 
  the northwest and highest waves around 11 feet. For the Gale 
  Watch, Highest gusts up to 40 kts from the west and highest 
  waves around 12 feet possible.

* WHERE...Portions of Lake Michigan. 

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>349-192315-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1009 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 45 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-192100-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1009 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 10 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 4 PM EST this afternoon.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 09:09:14

357 
WHUS73 KAPX 191509
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1009 AM EST Fri Dec 19 2025

LMZ323-341-342-344>346-192315-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1009 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, Highest gusts up to 45 kts from 
  the northwest and highest waves around 11 feet. For the Gale 
  Watch, Highest gusts up to 40 kts from the west and highest 
  waves around 12 feet possible.

* WHERE...Portions of Lake Michigan. 

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>349-192315-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1009 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 45 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-192100-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1009 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 10 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 4 PM EST this afternoon.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 09:09:14

357 
WHUS73 KAPX 191509
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
1009 AM EST Fri Dec 19 2025

LMZ323-341-342-344>346-192315-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
1009 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, Highest gusts up to 45 kts from 
  the northwest and highest waves around 11 feet. For the Gale 
  Watch, Highest gusts up to 40 kts from the west and highest 
  waves around 12 feet possible.

* WHERE...Portions of Lake Michigan. 

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345>349-192315-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
1009 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 45 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island, St Ignace to False Detour Channel, 
  5NM East of Mackinac Bridge to Presque Isle Light MI including 
  Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI 
  Including Thunder Bay National Marine Sanctuary and Sturgeon 
  Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-192100-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1009 AM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 10 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 4 PM EST this afternoon.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 14:17:53

674 
WHUS73 KAPX 192017
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
317 PM EST Fri Dec 19 2025

LMZ323-344>346-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...For the first Gale Warning, until 4 PM EST this 
  afternoon. For the second Gale Warning, from 4 PM Saturday to 
  7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200430-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.NEW.KAPX.SC.Y.0129.251219T2100Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...For the Gale Warning, Highest gusts up to 30 kts from 
  the northwest and highest waves around 10 feet. For the Small 
  Craft Advisory, Highest gusts up to 40 kts from the southwest 
  and highest waves around 13 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Small Craft Advisory, until 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 14:17:53

674 
WHUS73 KAPX 192017
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
317 PM EST Fri Dec 19 2025

LMZ323-344>346-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...For the first Gale Warning, until 4 PM EST this 
  afternoon. For the second Gale Warning, from 4 PM Saturday to 
  7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200430-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.NEW.KAPX.SC.Y.0129.251219T2100Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...For the Gale Warning, Highest gusts up to 30 kts from 
  the northwest and highest waves around 10 feet. For the Small 
  Craft Advisory, Highest gusts up to 40 kts from the southwest 
  and highest waves around 13 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Small Craft Advisory, until 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 14:17:53

674 
WHUS73 KAPX 192017
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
317 PM EST Fri Dec 19 2025

LMZ323-344>346-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...For the first Gale Warning, until 4 PM EST this 
  afternoon. For the second Gale Warning, from 4 PM Saturday to 
  7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200430-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.NEW.KAPX.SC.Y.0129.251219T2100Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...For the Gale Warning, Highest gusts up to 30 kts from 
  the northwest and highest waves around 10 feet. For the Small 
  Craft Advisory, Highest gusts up to 40 kts from the southwest 
  and highest waves around 13 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Small Craft Advisory, until 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 14:17:53

674 
WHUS73 KAPX 192017
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
317 PM EST Fri Dec 19 2025

LMZ323-344>346-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...For the first Gale Warning, until 4 PM EST this 
  afternoon. For the second Gale Warning, from 4 PM Saturday to 
  7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200430-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.NEW.KAPX.SC.Y.0129.251219T2100Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...For the Gale Warning, Highest gusts up to 30 kts from 
  the northwest and highest waves around 10 feet. For the Small 
  Craft Advisory, Highest gusts up to 40 kts from the southwest 
  and highest waves around 13 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Small Craft Advisory, until 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Time Extended
Issued At: 2025-12-19 14:17:53

674 
WHUS73 KAPX 192017
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
317 PM EST Fri Dec 19 2025

LMZ323-344>346-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...For the first Gale Warning, until 4 PM EST this 
  afternoon. For the second Gale Warning, from 4 PM Saturday to 
  7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200430-
/O.EXT.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.UPG.KAPX.GL.A.0022.251220T2100Z-251221T0900Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING NOW IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 35 kts 
  from the northwest and highest waves around 9 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.NEW.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200430-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.NEW.KAPX.SC.Y.0129.251219T2100Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...For the Gale Warning, Highest gusts up to 30 kts from 
  the northwest and highest waves around 10 feet. For the Small 
  Craft Advisory, Highest gusts up to 40 kts from the southwest 
  and highest waves around 13 feet expected.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...For the Gale Warning, until 4 PM EST this afternoon. 
  For the Small Craft Advisory, until 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
317 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 12 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$


Action: Expired
Issued At: 2025-12-19 15:08:25

941 
WHUS73 KAPX 192108
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
408 PM EST Fri Dec 19 2025

LMZ323-344>346-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...From 4 PM Saturday to 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.SC.Y.0129.000000T0000Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
408 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LHZ345-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 8 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 11 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

JZ


Action: Continued
Issued At: 2025-12-19 15:08:25

941 
WHUS73 KAPX 192108
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
408 PM EST Fri Dec 19 2025

LMZ323-344>346-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...From 4 PM Saturday to 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.SC.Y.0129.000000T0000Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
408 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LHZ345-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 8 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 11 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

JZ


Action: Continued
Issued At: 2025-12-19 15:08:25

941 
WHUS73 KAPX 192108
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
408 PM EST Fri Dec 19 2025

LMZ323-344>346-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...From 4 PM Saturday to 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.SC.Y.0129.000000T0000Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
408 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LHZ345-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 8 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 11 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

JZ


Action: Expired
Issued At: 2025-12-19 15:08:25

941 
WHUS73 KAPX 192108
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
408 PM EST Fri Dec 19 2025

LMZ323-344>346-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...From 4 PM Saturday to 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.SC.Y.0129.000000T0000Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
408 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LHZ345-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 8 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 11 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

JZ


Action: Continued
Issued At: 2025-12-19 15:08:25

941 
WHUS73 KAPX 192108
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
408 PM EST Fri Dec 19 2025

LMZ323-344>346-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...Highest gusts up to 40 kts from the west and highest 
  waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...From 4 PM Saturday to 7 AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-200515-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251219T2100Z/
/O.CON.KAPX.SC.Y.0129.000000T0000Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
408 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Highest gusts up to 40 kts from the southwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LHZ345-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 5 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ341-342-200515-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the first Gale Warning, Highest gusts up to 30 kts 
  from the northwest and highest waves around 8 feet. For the 
  second Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the first Gale Warning, until 7 PM EST this 
  evening. For the second Gale Warning, from 4 PM Saturday to 7 
  AM EST Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-200000-
/O.CON.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
408 PM EST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Highest gusts up to 40 kts from the northwest and 
  highest waves around 11 feet.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

JZ


Action: Expired
Issued At: 2025-12-19 18:14:59

311 
WHUS73 KAPX 200014
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
714 PM EST Fri Dec 19 2025

LMZ341-342-201200-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.EXB.KAPX.SC.Y.0129.251220T0600Z-251220T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 9 feet expected. 
  For the Gale Warning, Highest gusts up to 45 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the Small Craft Advisory, from 1 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345-201200-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.EXB.KAPX.SC.Y.0129.251220T0900Z-251220T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the south and highest waves around 4 feet expected. 
  For the Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the Small Craft Advisory, from 4 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-201200-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.EXB.KAPX.SC.Y.0129.251220T0900Z-251220T2100Z/
/O.EXA.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST
SATURDAY...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 8 feet expected. 
  For the Gale Warning, Highest gusts up to 45 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...For the Small Craft Advisory, from 4 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-344>346-201200-
/O.EXB.KAPX.SC.Y.0129.251220T0600Z-251220T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the southwest and highest waves around 9 feet 
  expected. For the Gale Warning, Highest gusts up to 45 kts 
  from the west and highest waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...For the Small Craft Advisory, from 1 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-201200-
/O.CON.KAPX.SC.Y.0129.000000T0000Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Highest gusts up to 35 kts from the southwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Expired
Issued At: 2025-12-19 18:14:59

311 
WHUS73 KAPX 200014
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
714 PM EST Fri Dec 19 2025

LMZ341-342-201200-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.EXB.KAPX.SC.Y.0129.251220T0600Z-251220T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 9 feet expected. 
  For the Gale Warning, Highest gusts up to 45 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the Small Craft Advisory, from 1 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345-201200-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.EXB.KAPX.SC.Y.0129.251220T0900Z-251220T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the south and highest waves around 4 feet expected. 
  For the Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the Small Craft Advisory, from 4 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-201200-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.EXB.KAPX.SC.Y.0129.251220T0900Z-251220T2100Z/
/O.EXA.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST
SATURDAY...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 8 feet expected. 
  For the Gale Warning, Highest gusts up to 45 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...For the Small Craft Advisory, from 4 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-344>346-201200-
/O.EXB.KAPX.SC.Y.0129.251220T0600Z-251220T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the southwest and highest waves around 9 feet 
  expected. For the Gale Warning, Highest gusts up to 45 kts 
  from the west and highest waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...For the Small Craft Advisory, from 1 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-201200-
/O.CON.KAPX.SC.Y.0129.000000T0000Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Highest gusts up to 35 kts from the southwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$


Action: Expired
Issued At: 2025-12-19 18:14:59

311 
WHUS73 KAPX 200014
MWWAPX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Gaylord MI
714 PM EST Fri Dec 19 2025

LMZ341-342-201200-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.EXB.KAPX.SC.Y.0129.251220T0600Z-251220T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 9 feet expected. 
  For the Gale Warning, Highest gusts up to 45 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...Seul Choix Point to 5NM West of Mackinac Bridge and 
  Norwood MI to 5NM West of Mackinac Bridge including Little 
  Traverse Bay.

* WHEN...For the Small Craft Advisory, from 1 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ345-201200-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.EXB.KAPX.SC.Y.0129.251220T0900Z-251220T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 30 
  kts from the south and highest waves around 4 feet expected. 
  For the Gale Warning, Highest gusts up to 40 kts from the west 
  and highest waves around 8 feet expected.

* WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge 
  including Mackinac Island.

* WHEN...For the Small Craft Advisory, from 4 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LHZ346>349-201200-
/O.EXP.KAPX.GL.W.0036.000000T0000Z-251220T0000Z/
/O.EXB.KAPX.SC.Y.0129.251220T0900Z-251220T2100Z/
/O.EXA.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 4 PM EST
SATURDAY...
...GALE WARNING IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the south and highest waves around 8 feet expected. 
  For the Gale Warning, Highest gusts up to 45 kts from the west 
  and highest waves around 11 feet expected.

* WHERE...St Ignace to False Detour Channel, 5NM East of 
  Mackinac Bridge to Presque Isle Light MI including Bois Blanc 
  Island, Presque Isle Light to Sturgeon Pt MI Including Thunder 
  Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI.

* WHEN...For the Small Craft Advisory, from 4 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ323-344>346-201200-
/O.EXB.KAPX.SC.Y.0129.251220T0600Z-251220T2100Z/
/O.CON.KAPX.GL.W.0037.251220T2100Z-251221T1200Z/
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM TO 4 PM EST
SATURDAY...
...GALE WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO 7 AM EST
SUNDAY...

* WHAT...For the Small Craft Advisory, Highest gusts up to 35 
  kts from the southwest and highest waves around 9 feet 
  expected. For the Gale Warning, Highest gusts up to 45 kts 
  from the west and highest waves around 13 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse 
  Light to Norwood MI, Sleeping Bear Point to Grand Traverse 
  Light MI, Point Betsie to Sleeping Bear Point MI and Manistee 
  to Point Betsie MI.

* WHEN...For the Small Craft Advisory, from 1 AM to 4 PM EST 
  Saturday. For the Gale Warning, from 4 PM Saturday to 7 AM EST 
  Sunday.

* IMPACTS...Strong winds will cause hazardous highest waves 
  which could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LSZ321-322-201200-
/O.CON.KAPX.SC.Y.0129.000000T0000Z-251221T1200Z/
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
714 PM EST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Highest gusts up to 35 kts from the southwest and 
  highest waves around 13 feet.

* WHERE...Whitefish Bay (U. S. Portion)/Whitefish Point to Point 
  Iroquois MI and St. Marys River Point Iroquois to E. 
  Potagannissing Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$



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