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Gale Warning 0039
Issued by the Milwaukee / Sullivan Forecast Office

Action Issued Starts Expiration
New 2025-12-17 03:05:40 2025-12-17 23:00:00 2025-12-19 09:00:00
New 2025-12-17 03:05:40 2025-12-17 23:00:00 2025-12-19 09:00:00
New 2025-12-17 03:05:40 2025-12-17 23:00:00 2025-12-19 09:00:00
Continued 2025-12-17 12:20:19 2025-12-17 23:00:00 2025-12-19 09:00:00
Time and Area Extended 2025-12-17 14:53:52 2025-12-18 18:00:00 2025-12-19 09:00:00
Continued 2025-12-17 14:53:52 2025-12-17 23:00:00 2025-12-19 09:00:00
Continued 2025-12-17 21:35:01 2025-12-18 18:00:00 2025-12-19 09:00:00
Continued 2025-12-17 21:35:01 2025-12-17 23:00:00 2025-12-19 09:00:00
Continued 2025-12-18 02:51:08 2025-12-18 18:00:00 2025-12-19 09:00:00
Continued 2025-12-18 02:51:08 2025-12-19 09:00:00
Continued 2025-12-18 09:40:45 2025-12-19 09:00:00
Continued 2025-12-18 09:40:45 2025-12-18 18:00:00 2025-12-19 09:00:00
Continued 2025-12-18 14:35:52 2025-12-18 18:00:00 2025-12-19 09:00:00
Time Extended 2025-12-18 14:35:52 2025-12-19 12:00:00
Time Extended 2025-12-18 14:35:52 2025-12-19 14:00:00
Continued 2025-12-18 21:04:32 2025-12-19 12:00:00
Continued 2025-12-18 21:04:32 2025-12-19 09:00:00
Continued 2025-12-18 21:04:32 2025-12-19 14:00:00
Continued 2025-12-19 02:35:49 2025-12-19 12:00:00
Continued 2025-12-19 02:35:49 2025-12-19 09:00:00
Continued 2025-12-19 02:35:49 2025-12-19 14:00:00
Continued 2025-12-19 02:35:49 2025-12-19 12:00:00
Continued 2025-12-19 10:24:17 2025-12-19 12:00:00
Continued 2025-12-19 10:24:17 2025-12-19 12:00:00
Continued 2025-12-19 10:24:17 2025-12-19 14:00:00
Expired 2025-12-19 14:13:23 2025-12-19 14:00:00


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

691 
WHUS73 KMKX 170905
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
305 AM CST Wed Dec 17 2025

LMZ261-362-364-366-563-565-171715-
/O.EXP.KMKX.GL.W.0038.000000T0000Z-251217T0900Z/
/O.UPG.KMKX.GL.A.0031.251218T0500Z-251218T1600Z/
/O.NEW.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
305 AM CST Wed Dec 17 2025

...ONGOING GALE WARNING WILL EXPIRE AT 3 AM CST EARLY THIS 
MORNING...
...NEW GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CST
FRIDAY...

* WHAT...For Tonight into Thursday morning, south winds 20 to 30
  kt with gusts up to 40 kt and waves 10 to 15 ft expected. For
  Thursday afternoon and onwards, west to northwest winds 20 to 30
  kt with gusts up to 40 kt and waves 8 to 11 ft expected.

* WHERE...Northern Third of the Open Waters of Lake Michigan, 
  Lake Michigan from Point Betsie to Manistee MI 5NM offshore to 
  Mid Lake, and Lake Michigan from Sturgeon Bay to Two Rivers WI 
  5NM offshore to Mid Lake.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A lull in gales may occur in the late
  morning and afternoon hours of Thursday before ramping back up. 

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 severe conditions.

&&

$$

LMZ567-669-671-673-868-870-872-874-171715-
/O.EXP.KMKX.GL.W.0038.000000T0000Z-251217T0900Z/
/O.UPG.KMKX.GL.A.0031.251218T0500Z-251219T1500Z/
/O.NEW.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
305 AM CST Wed Dec 17 2025

...ONGOING GALE WARNING WILL EXPIRE AT 3 AM CST EARLY THIS 
MORNING...
...NEW GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CST
FRIDAY...

* WHAT...For Tonight into Thursday morning, south winds 20 to 30
  kt with gusts up to 40 kt and waves 8 to 13 ft expected. From
  Thursday afternoon onwards, west to northwest winds 20 to 30 kt
  with gusts up to 40 kt and waves 8 to 14 ft expected. 

* WHERE...Central portions of the open waters of Lake Michigan.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A lull in gales may occur in the late
  morning and afternoon hours of Thursday before ramping back up. 

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 severe conditions.

&&

$$

LMZ080-675-777-779-876-878-171715-
/O.UPG.KMKX.GL.A.0031.251218T0500Z-251219T1500Z/
/O.NEW.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
305 AM CST Wed Dec 17 2025

...GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CST
FRIDAY...

* WHAT...For Tonight through Thursday morning, south winds 20 to
  30 kt with gusts up to 35 kt and waves 7 to 12 ft expected. For
  Thursday afternoon and onwards, west to northwest winds 20 to 30
  kt with gusts up to 40 kt and waves 8 to 14 ft expected.

* WHERE...Southern portions of the open waters of Lake Michigan.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A lull in gales may occur in the late
  morning and afternoon hours of Thursday before ramping back up. 

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 severe conditions.

&&

$$

LMZ643>646-171715-
/O.CON.KMKX.SC.Y.0113.000000T0000Z-251217T1200Z/
/O.NEW.KMKX.SC.Y.0114.251218T0000Z-251219T0000Z/
/O.NEW.KMKX.GL.A.0032.251219T0000Z-251219T1200Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
305 AM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE
THURSDAY NIGHT...

* WHAT...For the first Small Craft Advisory, west winds 15 to 20
  kt with gusts up to 30 kt. For the second Small Craft Advisory,
  south winds 15 to 25 kt with gusts up to 30 kt and waves 5 to 8
  ft expected, with a few gusts to gale force possible. For the
  Gale Watch, west to northwest winds 20 to 30 kt with gusts up 
  to 35 kt possible.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the first Small Craft Advisory, until 6 AM CST 
  early this morning. For the second Small Craft Advisory, from 
  6 PM this evening to 6 PM CST Thursday. For the Gale Watch, 
  from 6 PM CST Thursday evening through late Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$

Sheppard


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

691 
WHUS73 KMKX 170905
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
305 AM CST Wed Dec 17 2025

LMZ261-362-364-366-563-565-171715-
/O.EXP.KMKX.GL.W.0038.000000T0000Z-251217T0900Z/
/O.UPG.KMKX.GL.A.0031.251218T0500Z-251218T1600Z/
/O.NEW.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
305 AM CST Wed Dec 17 2025

...ONGOING GALE WARNING WILL EXPIRE AT 3 AM CST EARLY THIS 
MORNING...
...NEW GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CST
FRIDAY...

* WHAT...For Tonight into Thursday morning, south winds 20 to 30
  kt with gusts up to 40 kt and waves 10 to 15 ft expected. For
  Thursday afternoon and onwards, west to northwest winds 20 to 30
  kt with gusts up to 40 kt and waves 8 to 11 ft expected.

* WHERE...Northern Third of the Open Waters of Lake Michigan, 
  Lake Michigan from Point Betsie to Manistee MI 5NM offshore to 
  Mid Lake, and Lake Michigan from Sturgeon Bay to Two Rivers WI 
  5NM offshore to Mid Lake.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A lull in gales may occur in the late
  morning and afternoon hours of Thursday before ramping back up. 

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 severe conditions.

&&

$$

LMZ567-669-671-673-868-870-872-874-171715-
/O.EXP.KMKX.GL.W.0038.000000T0000Z-251217T0900Z/
/O.UPG.KMKX.GL.A.0031.251218T0500Z-251219T1500Z/
/O.NEW.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
305 AM CST Wed Dec 17 2025

...ONGOING GALE WARNING WILL EXPIRE AT 3 AM CST EARLY THIS 
MORNING...
...NEW GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CST
FRIDAY...

* WHAT...For Tonight into Thursday morning, south winds 20 to 30
  kt with gusts up to 40 kt and waves 8 to 13 ft expected. From
  Thursday afternoon onwards, west to northwest winds 20 to 30 kt
  with gusts up to 40 kt and waves 8 to 14 ft expected. 

* WHERE...Central portions of the open waters of Lake Michigan.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A lull in gales may occur in the late
  morning and afternoon hours of Thursday before ramping back up. 

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 severe conditions.

&&

$$

LMZ080-675-777-779-876-878-171715-
/O.UPG.KMKX.GL.A.0031.251218T0500Z-251219T1500Z/
/O.NEW.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
305 AM CST Wed Dec 17 2025

...GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CST
FRIDAY...

* WHAT...For Tonight through Thursday morning, south winds 20 to
  30 kt with gusts up to 35 kt and waves 7 to 12 ft expected. For
  Thursday afternoon and onwards, west to northwest winds 20 to 30
  kt with gusts up to 40 kt and waves 8 to 14 ft expected.

* WHERE...Southern portions of the open waters of Lake Michigan.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A lull in gales may occur in the late
  morning and afternoon hours of Thursday before ramping back up. 

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 severe conditions.

&&

$$

LMZ643>646-171715-
/O.CON.KMKX.SC.Y.0113.000000T0000Z-251217T1200Z/
/O.NEW.KMKX.SC.Y.0114.251218T0000Z-251219T0000Z/
/O.NEW.KMKX.GL.A.0032.251219T0000Z-251219T1200Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
305 AM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE
THURSDAY NIGHT...

* WHAT...For the first Small Craft Advisory, west winds 15 to 20
  kt with gusts up to 30 kt. For the second Small Craft Advisory,
  south winds 15 to 25 kt with gusts up to 30 kt and waves 5 to 8
  ft expected, with a few gusts to gale force possible. For the
  Gale Watch, west to northwest winds 20 to 30 kt with gusts up 
  to 35 kt possible.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the first Small Craft Advisory, until 6 AM CST 
  early this morning. For the second Small Craft Advisory, from 
  6 PM this evening to 6 PM CST Thursday. For the Gale Watch, 
  from 6 PM CST Thursday evening through late Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$

Sheppard


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

691 
WHUS73 KMKX 170905
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
305 AM CST Wed Dec 17 2025

LMZ261-362-364-366-563-565-171715-
/O.EXP.KMKX.GL.W.0038.000000T0000Z-251217T0900Z/
/O.UPG.KMKX.GL.A.0031.251218T0500Z-251218T1600Z/
/O.NEW.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
305 AM CST Wed Dec 17 2025

...ONGOING GALE WARNING WILL EXPIRE AT 3 AM CST EARLY THIS 
MORNING...
...NEW GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CST
FRIDAY...

* WHAT...For Tonight into Thursday morning, south winds 20 to 30
  kt with gusts up to 40 kt and waves 10 to 15 ft expected. For
  Thursday afternoon and onwards, west to northwest winds 20 to 30
  kt with gusts up to 40 kt and waves 8 to 11 ft expected.

* WHERE...Northern Third of the Open Waters of Lake Michigan, 
  Lake Michigan from Point Betsie to Manistee MI 5NM offshore to 
  Mid Lake, and Lake Michigan from Sturgeon Bay to Two Rivers WI 
  5NM offshore to Mid Lake.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A lull in gales may occur in the late
  morning and afternoon hours of Thursday before ramping back up. 

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 severe conditions.

&&

$$

LMZ567-669-671-673-868-870-872-874-171715-
/O.EXP.KMKX.GL.W.0038.000000T0000Z-251217T0900Z/
/O.UPG.KMKX.GL.A.0031.251218T0500Z-251219T1500Z/
/O.NEW.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
305 AM CST Wed Dec 17 2025

...ONGOING GALE WARNING WILL EXPIRE AT 3 AM CST EARLY THIS 
MORNING...
...NEW GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CST
FRIDAY...

* WHAT...For Tonight into Thursday morning, south winds 20 to 30
  kt with gusts up to 40 kt and waves 8 to 13 ft expected. From
  Thursday afternoon onwards, west to northwest winds 20 to 30 kt
  with gusts up to 40 kt and waves 8 to 14 ft expected. 

* WHERE...Central portions of the open waters of Lake Michigan.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A lull in gales may occur in the late
  morning and afternoon hours of Thursday before ramping back up. 

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 severe conditions.

&&

$$

LMZ080-675-777-779-876-878-171715-
/O.UPG.KMKX.GL.A.0031.251218T0500Z-251219T1500Z/
/O.NEW.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
305 AM CST Wed Dec 17 2025

...GALE WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 AM CST
FRIDAY...

* WHAT...For Tonight through Thursday morning, south winds 20 to
  30 kt with gusts up to 35 kt and waves 7 to 12 ft expected. For
  Thursday afternoon and onwards, west to northwest winds 20 to 30
  kt with gusts up to 40 kt and waves 8 to 14 ft expected.

* WHERE...Southern portions of the open waters of Lake Michigan.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A lull in gales may occur in the late
  morning and afternoon hours of Thursday before ramping back up. 

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 severe conditions.

&&

$$

LMZ643>646-171715-
/O.CON.KMKX.SC.Y.0113.000000T0000Z-251217T1200Z/
/O.NEW.KMKX.SC.Y.0114.251218T0000Z-251219T0000Z/
/O.NEW.KMKX.GL.A.0032.251219T0000Z-251219T1200Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
305 AM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE
THURSDAY NIGHT...

* WHAT...For the first Small Craft Advisory, west winds 15 to 20
  kt with gusts up to 30 kt. For the second Small Craft Advisory,
  south winds 15 to 25 kt with gusts up to 30 kt and waves 5 to 8
  ft expected, with a few gusts to gale force possible. For the
  Gale Watch, west to northwest winds 20 to 30 kt with gusts up 
  to 35 kt possible.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the first Small Craft Advisory, until 6 AM CST 
  early this morning. For the second Small Craft Advisory, from 
  6 PM this evening to 6 PM CST Thursday. For the Gale Watch, 
  from 6 PM CST Thursday evening through late Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$

Sheppard


Action: Continued
Issued At: 2025-12-17 12:20:19

784 
WHUS73 KMKX 171819
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1219 PM CST Wed Dec 17 2025

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-180230-
/O.CON.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
1219 PM CST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...Southwest winds 25 to 35 kt with gusts up to 40 kt and 
  waves 8 to 13 ft expected.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-180230-
/O.CON.KMKX.SC.Y.0114.251218T0000Z-251219T0000Z/
/O.CON.KMKX.GL.A.0032.251219T0000Z-251219T1200Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
1219 PM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST THURSDAY...
...GALE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH
LATE THURSDAY NIGHT...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt 
  with gusts up to 30 kt and waves 5 to 8 ft expected. For the 
  Gale Watch, west winds 20 to 30 kt with gusts up to 40 kt 
  possible.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, from 6 PM this evening to 
  6 PM CST Thursday. For the Gale Watch, from Thursday evening 
  through late Thursday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$


Action: Time and Area Extended
Issued At: 2025-12-17 14:53:52

781 
WHUS73 KMKX 172053
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
253 PM CST Wed Dec 17 2025

LMZ643>646-180500-
/O.CON.KMKX.SC.Y.0114.251218T0000Z-251219T0000Z/
/O.UPG.KMKX.GL.A.0032.251219T0000Z-251219T1200Z/
/O.EXB.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
253 PM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST THURSDAY...
...GALE WARNING IN EFFECT FROM 6 PM THURSDAY TO 9 AM CST FRIDAY...

* WHAT...For the Small Craft Advisory, south to southwest winds 15
  to 25 kt with gusts up to 30 kt and waves 5 to 8 ft expected. A
  few gale force gusts up to 35 kt are possible. For the Gale 
  Warning, west winds 20 to 30 kt with gusts up to 40 kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, from 6 PM this evening to 
  6 PM CST Thursday. For the Gale Warning, from 6 PM Thursday to 
  9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-180500-
/O.CON.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
253 PM CST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...South-southwest winds 20 to 30 kt with gusts up to 40 kt
  and waves 8 to 15 ft expected through early Thursday afternoon.
  West-northwest winds 20 to 30 kt with gusts up to 40 kt and
  waves 8 to 13 ft. 

* WHERE...All Open Waters of Lake Michigan.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

MRC


Action: Continued
Issued At: 2025-12-17 14:53:52

781 
WHUS73 KMKX 172053
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
253 PM CST Wed Dec 17 2025

LMZ643>646-180500-
/O.CON.KMKX.SC.Y.0114.251218T0000Z-251219T0000Z/
/O.UPG.KMKX.GL.A.0032.251219T0000Z-251219T1200Z/
/O.EXB.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
253 PM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST THURSDAY...
...GALE WARNING IN EFFECT FROM 6 PM THURSDAY TO 9 AM CST FRIDAY...

* WHAT...For the Small Craft Advisory, south to southwest winds 15
  to 25 kt with gusts up to 30 kt and waves 5 to 8 ft expected. A
  few gale force gusts up to 35 kt are possible. For the Gale 
  Warning, west winds 20 to 30 kt with gusts up to 40 kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, from 6 PM this evening to 
  6 PM CST Thursday. For the Gale Warning, from 6 PM Thursday to 
  9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-180500-
/O.CON.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
253 PM CST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...South-southwest winds 20 to 30 kt with gusts up to 40 kt
  and waves 8 to 15 ft expected through early Thursday afternoon.
  West-northwest winds 20 to 30 kt with gusts up to 40 kt and
  waves 8 to 13 ft. 

* WHERE...All Open Waters of Lake Michigan.

* WHEN...From 11 PM this evening to 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

MRC


Action: Continued
Issued At: 2025-12-17 21:35:01

895 
WHUS73 KMKX 180334
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
934 PM CST Wed Dec 17 2025

LMZ643>646-181145-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
934 PM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THURSDAY TO 9 AM CST
FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt
  with gusts up to 35 kt and waves 5 to 8 ft. Isolated gale force
  gusts up to 35 kt are possible. For the Gale Warning, west 
  winds 20 to 30 kt with gusts up to 40 kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, until 6 PM CST Thursday. 
  For the Gale Warning, from 6 PM Thursday to 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-181145-
/O.CON.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
934 PM CST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Southwest winds 25 to 35 kt with gusts up to 40 kt and
  waves 8 to 15 ft expected through early Thursday afternoon.
  West-northwest winds 20 to 30 kt with gusts up to 40 kt and
  waves 8 to 13 ft Thursday evening into Friday morning.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-17 21:35:01

895 
WHUS73 KMKX 180334
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
934 PM CST Wed Dec 17 2025

LMZ643>646-181145-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
934 PM CST Wed Dec 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THURSDAY TO 9 AM CST
FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt
  with gusts up to 35 kt and waves 5 to 8 ft. Isolated gale force
  gusts up to 35 kt are possible. For the Gale Warning, west 
  winds 20 to 30 kt with gusts up to 40 kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, until 6 PM CST Thursday. 
  For the Gale Warning, from 6 PM Thursday to 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-181145-
/O.CON.KMKX.GL.W.0039.251218T0500Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
934 PM CST Wed Dec 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Southwest winds 25 to 35 kt with gusts up to 40 kt and
  waves 8 to 15 ft expected through early Thursday afternoon.
  West-northwest winds 20 to 30 kt with gusts up to 40 kt and
  waves 8 to 13 ft Thursday evening into Friday morning.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 02:51:08

499 
WHUS73 KMKX 180850
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
250 AM CST Thu Dec 18 2025

LMZ643>646-181700-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
250 AM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to gale
  force possible through early this afternoon. For the Gale
  Warning, west to northwest winds 20 to 30 kt with gusts up to 35 
  kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening to 9 AM 
  CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-181700-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
250 AM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft.
  From this evening onwards, west to northwest winds 20 to 30 kt
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A brief lull in the gales may occur late
  this afternoon. Moderate freezing spray is expected to accompany
  the gales late tonight through Friday morning. 

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 severe conditions.

&&

$$

Sheppard


Action: Continued
Issued At: 2025-12-18 02:51:08

499 
WHUS73 KMKX 180850
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
250 AM CST Thu Dec 18 2025

LMZ643>646-181700-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
250 AM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to gale
  force possible through early this afternoon. For the Gale
  Warning, west to northwest winds 20 to 30 kt with gusts up to 35 
  kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening to 9 AM 
  CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-181700-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
250 AM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft.
  From this evening onwards, west to northwest winds 20 to 30 kt
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 9 AM CST Friday.

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

* ADDITIONAL DETAILS...A brief lull in the gales may occur late
  this afternoon. Moderate freezing spray is expected to accompany
  the gales late tonight through Friday morning. 

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 severe conditions.

&&

$$

Sheppard


Action: Continued
Issued At: 2025-12-18 09:40:45

972 
WHUS73 KMKX 181540
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
940 AM CST Thu Dec 18 2025

LMZ643>646-182345-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
940 AM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt 
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to 
  gale force possible through early this afternoon. For the Gale 
  Warning, west to northwest winds 20 to 30 kt with gusts up to 
  35 kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening to 9 AM 
  CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-182345-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
940 AM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 09:40:45

972 
WHUS73 KMKX 181540
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
940 AM CST Thu Dec 18 2025

LMZ643>646-182345-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
940 AM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt 
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to 
  gale force possible through early this afternoon. For the Gale 
  Warning, west to northwest winds 20 to 30 kt with gusts up to 
  35 kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening to 9 AM 
  CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-182345-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
940 AM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 14:35:52

266 
WHUS73 KMKX 182035
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 PM CST Thu Dec 18 2025

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-190445-
/O.EXT.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
235 PM CST Thu Dec 18 2025

...GALE WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until noon CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-190445-
/O.EXT.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
235 PM CST Thu Dec 18 2025

...GALE WARNING NOW IN EFFECT UNTIL 2 PM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 2 PM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-190445-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
235 PM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt 
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to 
  gale force possible through early this afternoon. For the Gale 
  Warning, west to northwest winds 20 to 30 kt with gusts up to 
  35 kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening to 9 AM 
  CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Time Extended
Issued At: 2025-12-18 14:35:52

266 
WHUS73 KMKX 182035
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 PM CST Thu Dec 18 2025

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-190445-
/O.EXT.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
235 PM CST Thu Dec 18 2025

...GALE WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until noon CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-190445-
/O.EXT.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
235 PM CST Thu Dec 18 2025

...GALE WARNING NOW IN EFFECT UNTIL 2 PM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 2 PM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-190445-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
235 PM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt 
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to 
  gale force possible through early this afternoon. For the Gale 
  Warning, west to northwest winds 20 to 30 kt with gusts up to 
  35 kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening to 9 AM 
  CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Time Extended
Issued At: 2025-12-18 14:35:52

266 
WHUS73 KMKX 182035
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 PM CST Thu Dec 18 2025

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-190445-
/O.EXT.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
235 PM CST Thu Dec 18 2025

...GALE WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until noon CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-190445-
/O.EXT.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
235 PM CST Thu Dec 18 2025

...GALE WARNING NOW IN EFFECT UNTIL 2 PM CST FRIDAY...

* WHAT...Through the morning and early afternoon today, south 
  winds 20 to 30 kt with gusts up to 40 kt and waves 8 to 13 ft. 
  From this evening onwards, west to northwest winds 20 to 30 kt 
  with gusts up to 40 kt and waves 7 to 14 ft.

* WHERE...All Open Waters of Lake Michigan.

* WHEN...Until 2 PM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-190445-
/O.CON.KMKX.SC.Y.0114.000000T0000Z-251219T0000Z/
/O.CON.KMKX.GL.W.0039.251219T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
235 PM CST Thu Dec 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM
CST FRIDAY...

* WHAT...For the Small Craft Advisory, south winds 15 to 25 kt 
  with gusts up to 30 kt and waves 5 to 9 ft. A few gusts to 
  gale force possible through early this afternoon. For the Gale 
  Warning, west to northwest winds 20 to 30 kt with gusts up to 
  35 kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening to 9 AM 
  CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 21:04:32

095 
WHUS73 KMKX 190304
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
904 PM CST Thu Dec 18 2025

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...

* WHAT...West winds 25 to 35 kt and waves 8 to 13 ft.

* WHERE...Southern Two Thirds of the Open Waters of Lake 
  Michigan.

* WHEN...Until noon CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...West winds 20 to 30 kt with gusts up to 35 kt.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  waves 6 to 9 ft.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...Until 2 PM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 21:04:32

095 
WHUS73 KMKX 190304
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
904 PM CST Thu Dec 18 2025

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...

* WHAT...West winds 25 to 35 kt and waves 8 to 13 ft.

* WHERE...Southern Two Thirds of the Open Waters of Lake 
  Michigan.

* WHEN...Until noon CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...West winds 20 to 30 kt with gusts up to 35 kt.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  waves 6 to 9 ft.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...Until 2 PM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-18 21:04:32

095 
WHUS73 KMKX 190304
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
904 PM CST Thu Dec 18 2025

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...

* WHAT...West winds 25 to 35 kt and waves 8 to 13 ft.

* WHERE...Southern Two Thirds of the Open Waters of Lake 
  Michigan.

* WHEN...Until noon CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...West winds 20 to 30 kt with gusts up to 35 kt.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-191115-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
904 PM CST Thu Dec 18 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST FRIDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  waves 6 to 9 ft.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...Until 2 PM CST Friday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 02:35:49

820 
WHUS73 KMKX 190835
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 AM CST Fri Dec 19 2025

LMZ643>646-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
/O.NEW.KMKX.SC.Y.0115.251219T1500Z-251219T2000Z/
/O.NEW.KMKX.SC.Y.0116.251220T0500Z-251221T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 2 PM
CST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 8 AM
CST SUNDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt. For the first Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt expected. 
  For the second Small Craft Advisory, west winds 20 to 30 kt 
  and waves 4 to 7 ft expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Gale Warning, until 9 AM CST this morning. For 
  the first Small Craft Advisory, from 9 AM this morning to 2 PM 
  CST this afternoon. For the second Small Craft Advisory, from 
  11 PM this evening to 8 AM CST Sunday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ366-565-567-669-671-673-675-868-870-872-874-876-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 8 to 13 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 
  11 ft possible.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  Lake Michigan from North Point Light to Wind Point WI 5NM 
  offshore to Mid Lake, Lake Michigan from Wind Point WI to 
  Winthrop Harbor IL 5NM offshore to Mid Lake, Lake Michigan 
  from Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...For the Gale Warning, until noon CST today. For the 
  Gale Watch, from Saturday afternoon through late Saturday 
  night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and waves 6 to 9 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 
  ft possible.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...For the Gale Warning, until 2 PM CST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-777-779-878-191800-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
235 AM CST Fri Dec 19 2025

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

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and waves 
  7 to 12 ft.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of lake., Lake Michigan from Winthrop 
  Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Lake 
  Michigan from Wilmette Harbor to Michigan City in 5NM offshore 
  to Mid Lake and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...Until noon CST today.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 02:35:49

820 
WHUS73 KMKX 190835
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 AM CST Fri Dec 19 2025

LMZ643>646-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
/O.NEW.KMKX.SC.Y.0115.251219T1500Z-251219T2000Z/
/O.NEW.KMKX.SC.Y.0116.251220T0500Z-251221T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 2 PM
CST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 8 AM
CST SUNDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt. For the first Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt expected. 
  For the second Small Craft Advisory, west winds 20 to 30 kt 
  and waves 4 to 7 ft expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Gale Warning, until 9 AM CST this morning. For 
  the first Small Craft Advisory, from 9 AM this morning to 2 PM 
  CST this afternoon. For the second Small Craft Advisory, from 
  11 PM this evening to 8 AM CST Sunday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ366-565-567-669-671-673-675-868-870-872-874-876-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 8 to 13 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 
  11 ft possible.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  Lake Michigan from North Point Light to Wind Point WI 5NM 
  offshore to Mid Lake, Lake Michigan from Wind Point WI to 
  Winthrop Harbor IL 5NM offshore to Mid Lake, Lake Michigan 
  from Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...For the Gale Warning, until noon CST today. For the 
  Gale Watch, from Saturday afternoon through late Saturday 
  night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and waves 6 to 9 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 
  ft possible.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...For the Gale Warning, until 2 PM CST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-777-779-878-191800-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
235 AM CST Fri Dec 19 2025

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

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and waves 
  7 to 12 ft.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of lake., Lake Michigan from Winthrop 
  Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Lake 
  Michigan from Wilmette Harbor to Michigan City in 5NM offshore 
  to Mid Lake and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...Until noon CST today.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 02:35:49

820 
WHUS73 KMKX 190835
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 AM CST Fri Dec 19 2025

LMZ643>646-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
/O.NEW.KMKX.SC.Y.0115.251219T1500Z-251219T2000Z/
/O.NEW.KMKX.SC.Y.0116.251220T0500Z-251221T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 2 PM
CST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 8 AM
CST SUNDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt. For the first Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt expected. 
  For the second Small Craft Advisory, west winds 20 to 30 kt 
  and waves 4 to 7 ft expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Gale Warning, until 9 AM CST this morning. For 
  the first Small Craft Advisory, from 9 AM this morning to 2 PM 
  CST this afternoon. For the second Small Craft Advisory, from 
  11 PM this evening to 8 AM CST Sunday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ366-565-567-669-671-673-675-868-870-872-874-876-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 8 to 13 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 
  11 ft possible.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  Lake Michigan from North Point Light to Wind Point WI 5NM 
  offshore to Mid Lake, Lake Michigan from Wind Point WI to 
  Winthrop Harbor IL 5NM offshore to Mid Lake, Lake Michigan 
  from Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...For the Gale Warning, until noon CST today. For the 
  Gale Watch, from Saturday afternoon through late Saturday 
  night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and waves 6 to 9 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 
  ft possible.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...For the Gale Warning, until 2 PM CST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-777-779-878-191800-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
235 AM CST Fri Dec 19 2025

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

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and waves 
  7 to 12 ft.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of lake., Lake Michigan from Winthrop 
  Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Lake 
  Michigan from Wilmette Harbor to Michigan City in 5NM offshore 
  to Mid Lake and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...Until noon CST today.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 02:35:49

820 
WHUS73 KMKX 190835
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
235 AM CST Fri Dec 19 2025

LMZ643>646-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1500Z/
/O.NEW.KMKX.SC.Y.0115.251219T1500Z-251219T2000Z/
/O.NEW.KMKX.SC.Y.0116.251220T0500Z-251221T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 2 PM
CST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 8 AM
CST SUNDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt. For the first Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt expected. 
  For the second Small Craft Advisory, west winds 20 to 30 kt 
  and waves 4 to 7 ft expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Gale Warning, until 9 AM CST this morning. For 
  the first Small Craft Advisory, from 9 AM this morning to 2 PM 
  CST this afternoon. For the second Small Craft Advisory, from 
  11 PM this evening to 8 AM CST Sunday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ366-565-567-669-671-673-675-868-870-872-874-876-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 8 to 13 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 
  11 ft possible.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  Lake Michigan from North Point Light to Wind Point WI 5NM 
  offshore to Mid Lake, Lake Michigan from Wind Point WI to 
  Winthrop Harbor IL 5NM offshore to Mid Lake, Lake Michigan 
  from Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...For the Gale Warning, until noon CST today. For the 
  Gale Watch, from Saturday afternoon through late Saturday 
  night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-192100-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.NEW.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
235 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and waves 6 to 9 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 
  ft possible.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...For the Gale Warning, until 2 PM CST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-777-779-878-191800-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
235 AM CST Fri Dec 19 2025

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

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and waves 
  7 to 12 ft.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of lake., Lake Michigan from Winthrop 
  Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Lake 
  Michigan from Wilmette Harbor to Michigan City in 5NM offshore 
  to Mid Lake and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...Until noon CST today.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$


Action: Continued
Issued At: 2025-12-19 10:24:17

385 
WHUS73 KMKX 191624
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1024 AM CST Fri Dec 19 2025

LMZ366-565-567-669-671-673-675-868-870-872-874-876-200030-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
/O.CON.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
1024 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 8 to 13 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 
  11 ft possible.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  Lake Michigan from North Point Light to Wind Point WI 5NM 
  offshore to Mid Lake, Lake Michigan from Wind Point WI to 
  Winthrop Harbor IL 5NM offshore to Mid Lake, Lake Michigan 
  from Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...For the Gale Warning, until noon CST today. For the 
  Gale Watch, from Saturday afternoon through late Saturday 
  night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-200030-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.CON.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
1024 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and waves 6 to 9 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 
  ft possible.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...For the Gale Warning, until 2 PM CST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-777-779-878-191800-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
1024 AM CST Fri Dec 19 2025

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

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and waves 
  7 to 12 ft.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of lake., Lake Michigan from Winthrop 
  Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Lake 
  Michigan from Wilmette Harbor to Michigan City in 5NM offshore 
  to Mid Lake and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...Until noon CST today.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-200030-
/O.CON.KMKX.SC.Y.0115.000000T0000Z-251219T2000Z/
/O.CON.KMKX.SC.Y.0116.251220T0500Z-251221T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
1024 AM CST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 8 AM CST SUNDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt. For the first Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt expected. 
  For the second Small Craft Advisory, west winds 20 to 30 kt 
  and waves 4 to 7 ft expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Gale Warning, until 9 AM CST this morning. For 
  the first Small Craft Advisory, from 9 AM this morning to 2 PM 
  CST this afternoon. For the second Small Craft Advisory, from 
  11 PM this evening to 8 AM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Continued
Issued At: 2025-12-19 10:24:17

385 
WHUS73 KMKX 191624
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1024 AM CST Fri Dec 19 2025

LMZ366-565-567-669-671-673-675-868-870-872-874-876-200030-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
/O.CON.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
1024 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 8 to 13 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 
  11 ft possible.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  Lake Michigan from North Point Light to Wind Point WI 5NM 
  offshore to Mid Lake, Lake Michigan from Wind Point WI to 
  Winthrop Harbor IL 5NM offshore to Mid Lake, Lake Michigan 
  from Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...For the Gale Warning, until noon CST today. For the 
  Gale Watch, from Saturday afternoon through late Saturday 
  night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-200030-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.CON.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
1024 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and waves 6 to 9 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 
  ft possible.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...For the Gale Warning, until 2 PM CST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-777-779-878-191800-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
1024 AM CST Fri Dec 19 2025

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

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and waves 
  7 to 12 ft.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of lake., Lake Michigan from Winthrop 
  Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Lake 
  Michigan from Wilmette Harbor to Michigan City in 5NM offshore 
  to Mid Lake and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...Until noon CST today.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-200030-
/O.CON.KMKX.SC.Y.0115.000000T0000Z-251219T2000Z/
/O.CON.KMKX.SC.Y.0116.251220T0500Z-251221T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
1024 AM CST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 8 AM CST SUNDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt. For the first Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt expected. 
  For the second Small Craft Advisory, west winds 20 to 30 kt 
  and waves 4 to 7 ft expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Gale Warning, until 9 AM CST this morning. For 
  the first Small Craft Advisory, from 9 AM this morning to 2 PM 
  CST this afternoon. For the second Small Craft Advisory, from 
  11 PM this evening to 8 AM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Continued
Issued At: 2025-12-19 10:24:17

385 
WHUS73 KMKX 191624
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1024 AM CST Fri Dec 19 2025

LMZ366-565-567-669-671-673-675-868-870-872-874-876-200030-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
/O.CON.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
1024 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and waves 8 to 13 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 35 kt and waves 6 to 
  11 ft possible.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  Lake Michigan from North Point Light to Wind Point WI 5NM 
  offshore to Mid Lake, Lake Michigan from Wind Point WI to 
  Winthrop Harbor IL 5NM offshore to Mid Lake, Lake Michigan 
  from Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...For the Gale Warning, until noon CST today. For the 
  Gale Watch, from Saturday afternoon through late Saturday 
  night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ261-362-364-563-200030-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.CON.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
1024 AM CST Fri Dec 19 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and waves 6 to 9 ft. For the Gale Watch, 
  west winds 20 to 30 kt with gusts up to 40 kt and waves 6 to 9 
  ft possible.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...For the Gale Warning, until 2 PM CST this afternoon. 
  For the Gale Watch, from Saturday afternoon through late 
  Saturday night.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-777-779-878-191800-
/O.CON.KMKX.GL.W.0039.000000T0000Z-251219T1800Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
1024 AM CST Fri Dec 19 2025

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

* WHAT...West winds 25 to 30 kt with gusts up to 35 kt and waves 
  7 to 12 ft.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of lake., Lake Michigan from Winthrop 
  Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Lake 
  Michigan from Wilmette Harbor to Michigan City in 5NM offshore 
  to Mid Lake and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...Until noon CST today.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ643>646-200030-
/O.CON.KMKX.SC.Y.0115.000000T0000Z-251219T2000Z/
/O.CON.KMKX.SC.Y.0116.251220T0500Z-251221T1400Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
1024 AM CST Fri Dec 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 8 AM CST SUNDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt. For the first Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt expected. 
  For the second Small Craft Advisory, west winds 20 to 30 kt 
  and waves 4 to 7 ft expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Gale Warning, until 9 AM CST this morning. For 
  the first Small Craft Advisory, from 9 AM this morning to 2 PM 
  CST this afternoon. For the second Small Craft Advisory, from 
  11 PM this evening to 8 AM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Expired
Issued At: 2025-12-19 14:13:23

506 
WHUS73 KMKX 192012
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
212 PM CST Fri Dec 19 2025

LMZ261-362-364-563-200415-
/O.EXP.KMKX.GL.W.0039.000000T0000Z-251219T2000Z/
/O.UPG.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
/O.NEW.KMKX.GL.W.0040.251220T0700Z-251221T0900Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
212 PM CST Fri Dec 19 2025

...GALE WARNING IN EFFECT FROM 1 AM SATURDAY TO 3 AM CST SUNDAY...
...GALE WARNING HAS EXPIRED...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and 
  waves 6 to 11 ft expected.

* WHERE...Northern Third of the Open Waters of Lake Michigan.

* WHEN...From 1 AM Saturday to 3 AM CST Sunday.

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

* ADDITIONAL DETAILS...The previous Gale Warning over the northern
  third of the open waters has expired.

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 severe conditions.

&&

$$

LMZ643>646-200415-
/O.EXP.KMKX.SC.Y.0115.000000T0000Z-251219T2000Z/
/O.EXT.KMKX.SC.Y.0116.251220T0500Z-251220T2100Z/
/O.NEW.KMKX.GL.W.0040.251220T2100Z-251221T0900Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
212 PM CST Fri Dec 19 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 PM THIS EVENING TO
3 PM CST SATURDAY...
...GALE WARNING IN EFFECT FROM 3 PM SATURDAY TO 3 AM CST SUNDAY...
...SMALL CRAFT ADVISORY HAS EXPIRED...

* WHAT...For the Small Craft Advisory, southwest winds 15 to 25 
  kt with gusts up to 35 kt and waves 5 to 8 ft expected. For 
  the Gale Warning, west winds 20 to 30 kt with gusts up to 35 
  kt expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...For the Small Craft Advisory, from 11 PM this evening 
  to 3 PM CST Saturday. For the Gale Warning, from 3 PM Saturday 
  to 3 AM CST Sunday.

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

* ADDITIONAL DETAILS...The Small Craft Advisory from early this
  afternoon has expired.

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 severe conditions.

&&

$$

LMZ366-565-567-669-671-673-675-868-870-872-874-876-200415-
/O.UPG.KMKX.GL.A.0033.251220T2100Z-251221T0900Z/
/O.NEW.KMKX.GL.W.0040.251220T0700Z-251221T0900Z/
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
212 PM CST Fri Dec 19 2025

...GALE WARNING IN EFFECT FROM 1 AM SATURDAY TO 3 AM CST SUNDAY...

* WHAT...West winds 25 to 35 kt with gusts up to 40 kt and waves 
  7 to 12 ft expected.

* WHERE...Central Third of the Open Waters of Lake Michigan, 
  Lake Michigan from North Point Light to Wind Point WI 5NM 
  offshore to Mid Lake, Lake Michigan from Wind Point WI to 
  Winthrop Harbor IL 5NM offshore to Mid Lake, Lake Michigan 
  from Holland to Grand Haven MI 5NM offshore to Mid Lake, and 
  Lake Michigan from South Haven to Holland MI 5NM offshore to 
  Mid lake.

* WHEN...From 1 AM Saturday to 3 AM CST Sunday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$

LMZ080-777-779-878-200415-
/O.NEW.KMKX.GL.W.0040.251220T0700Z-251221T0900Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
212 PM CST Fri Dec 19 2025

...GALE WARNING IN EFFECT FROM 1 AM SATURDAY TO 3 AM CST SUNDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and 
  waves 7 to 10 ft expected.

* WHERE...Lake Michigan Michigan City IN to St. Joseph MI 5 NM 
  offshore to mid-line of lake., Lake Michigan from Winthrop 
  Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Lake 
  Michigan from Wilmette Harbor to Michigan City in 5NM offshore 
  to Mid Lake and Lake Michigan from St Joseph to South Haven MI 
  5NM offshore to Mid Lake.

* WHEN...From 1 AM Saturday to 3 AM CST Sunday.

* IMPACTS...Strong winds will cause hazardous 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 severe conditions.

&&

$$



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