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Gale Warning 0027
Issued by the Chicago Forecast Office

Action Issued Starts Expiration
New 2025-11-08 15:39:25 2025-11-09 06:00:00 2025-11-10 06:00:00
New 2025-11-08 15:39:25 2025-11-09 00:00:00 2025-11-10 06:00:00
Continued 2025-11-08 20:49:04 2025-11-09 06:00:00 2025-11-10 06:00:00
Continued 2025-11-08 20:49:04 2025-11-09 00:00:00 2025-11-10 06:00:00
Continued 2025-11-09 09:12:40 2025-11-10 06:00:00
Continued 2025-11-09 09:12:40 2025-11-10 06:00:00


Action: New
Issued At: 2025-11-08 15:39:25

435 
WHUS73 KLOT 082138
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
338 PM CST Sat Nov 8 2025

LMZ743>745-090545-
/O.CON.KLOT.SC.Y.0098.251109T0600Z-251109T1200Z/
/O.UPG.KLOT.GL.A.0018.251109T1200Z-251110T1200Z/
/O.NEW.KLOT.GL.W.0027.251109T1200Z-251110T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
338 PM CST Sat Nov 8 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM CST SUNDAY...
...GALE WARNING IN EFFECT FROM 6 AM SUNDAY TO 6 AM CST MONDAY...

* WHAT...For the Small Craft Advisory, northeast winds to 25 kt
  and significant waves to 7 ft occasionally to 9 ft expected. 
  For the Gale Warning, northwest winds to 35 kt and significant 
  waves to 16 ft occasionally to 21 ft expected.

* WHERE...Calumet Harbor IL to Michigan City IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  6 AM CST Sunday. For the Gale Warning, from 6 AM Sunday to 6 
  AM CST Monday.

* 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 hazardous conditions.

&&

$$

LMZ740>742-090545-
/O.UPG.KLOT.GL.A.0018.251109T0600Z-251110T1200Z/
/O.NEW.KLOT.GL.W.0027.251109T0600Z-251110T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
338 PM CST Sat Nov 8 2025

...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST
MONDAY...

* WHAT...North winds to 35 kt and significant waves to 14 ft 
  occasionally to 18 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL.

* WHEN...From midnight tonight to 6 AM CST Monday.

* 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 hazardous conditions.

&&

$$


Action: New
Issued At: 2025-11-08 15:39:25

435 
WHUS73 KLOT 082138
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
338 PM CST Sat Nov 8 2025

LMZ743>745-090545-
/O.CON.KLOT.SC.Y.0098.251109T0600Z-251109T1200Z/
/O.UPG.KLOT.GL.A.0018.251109T1200Z-251110T1200Z/
/O.NEW.KLOT.GL.W.0027.251109T1200Z-251110T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
338 PM CST Sat Nov 8 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM CST SUNDAY...
...GALE WARNING IN EFFECT FROM 6 AM SUNDAY TO 6 AM CST MONDAY...

* WHAT...For the Small Craft Advisory, northeast winds to 25 kt
  and significant waves to 7 ft occasionally to 9 ft expected. 
  For the Gale Warning, northwest winds to 35 kt and significant 
  waves to 16 ft occasionally to 21 ft expected.

* WHERE...Calumet Harbor IL to Michigan City IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  6 AM CST Sunday. For the Gale Warning, from 6 AM Sunday to 6 
  AM CST Monday.

* 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 hazardous conditions.

&&

$$

LMZ740>742-090545-
/O.UPG.KLOT.GL.A.0018.251109T0600Z-251110T1200Z/
/O.NEW.KLOT.GL.W.0027.251109T0600Z-251110T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
338 PM CST Sat Nov 8 2025

...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM CST
MONDAY...

* WHAT...North winds to 35 kt and significant waves to 14 ft 
  occasionally to 18 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL.

* WHEN...From midnight tonight to 6 AM CST Monday.

* 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 hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-11-08 20:49:04

125 
WHUS73 KLOT 090248
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
848 PM CST Sat Nov 8 2025

LMZ743>745-091100-
/O.CON.KLOT.SC.Y.0098.251109T0600Z-251109T1200Z/
/O.CON.KLOT.GL.W.0027.251109T1200Z-251110T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
848 PM CST Sat Nov 8 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM CST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 6 AM CST
MONDAY...

* WHAT...For the Small Craft Advisory, winds to 25 kt and
  significant waves to 7 ft occasionally to 9 ft expected. For the
  Gale Warning, winds to 35 kt and significant waves to 16 ft 
  occasionally to 21 ft expected.

* WHERE...Calumet Harbor IL to Michigan City IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  6 AM CST Sunday. For the Gale Warning, from 6 AM Sunday to 6 
  AM CST Monday.

* 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 hazardous conditions.

&&

$$

LMZ740>742-091100-
/O.CON.KLOT.GL.W.0027.251109T0600Z-251110T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
848 PM CST Sat Nov 8 2025

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM
CST MONDAY...

* WHAT...Winds to 35 kt and significant waves to 14 ft 
  occasionally to 18 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL.

* WHEN...From midnight tonight to 6 AM CST Monday.

* 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 hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-11-08 20:49:04

125 
WHUS73 KLOT 090248
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
848 PM CST Sat Nov 8 2025

LMZ743>745-091100-
/O.CON.KLOT.SC.Y.0098.251109T0600Z-251109T1200Z/
/O.CON.KLOT.GL.W.0027.251109T1200Z-251110T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
848 PM CST Sat Nov 8 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM CST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 6 AM CST
MONDAY...

* WHAT...For the Small Craft Advisory, winds to 25 kt and
  significant waves to 7 ft occasionally to 9 ft expected. For the
  Gale Warning, winds to 35 kt and significant waves to 16 ft 
  occasionally to 21 ft expected.

* WHERE...Calumet Harbor IL to Michigan City IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  6 AM CST Sunday. For the Gale Warning, from 6 AM Sunday to 6 
  AM CST Monday.

* 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 hazardous conditions.

&&

$$

LMZ740>742-091100-
/O.CON.KLOT.GL.W.0027.251109T0600Z-251110T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
848 PM CST Sat Nov 8 2025

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM
CST MONDAY...

* WHAT...Winds to 35 kt and significant waves to 14 ft 
  occasionally to 18 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL.

* WHEN...From midnight tonight to 6 AM CST Monday.

* 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 hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-11-09 09:12:40

389 
WHUS73 KLOT 091512
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
912 AM CST Sun Nov 9 2025

LMZ740>742-092315-
/O.CON.KLOT.GL.W.0027.000000T0000Z-251110T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
912 AM CST Sun Nov 9 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...Winds to 35 kt and significant waves to 14 ft 
  occasionally to 18 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL.

* WHEN...Until 6 AM CST Monday.

* 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 hazardous conditions.

&&

$$

LMZ743>745-092315-
/O.CON.KLOT.GL.W.0027.000000T0000Z-251110T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
912 AM CST Sun Nov 9 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...Winds to 35 kt and significant waves to 16 ft 
  occasionally to 21 ft expected.

* WHERE...Calumet Harbor IL to Michigan City IN.

* WHEN...Until 6 AM CST Monday.

* 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 hazardous conditions.

&&

$$


Action: Continued
Issued At: 2025-11-09 09:12:40

389 
WHUS73 KLOT 091512
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
912 AM CST Sun Nov 9 2025

LMZ740>742-092315-
/O.CON.KLOT.GL.W.0027.000000T0000Z-251110T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
912 AM CST Sun Nov 9 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...Winds to 35 kt and significant waves to 14 ft 
  occasionally to 18 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL.

* WHEN...Until 6 AM CST Monday.

* 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 hazardous conditions.

&&

$$

LMZ743>745-092315-
/O.CON.KLOT.GL.W.0027.000000T0000Z-251110T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
912 AM CST Sun Nov 9 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM CST MONDAY...

* WHAT...Winds to 35 kt and significant waves to 16 ft 
  occasionally to 21 ft expected.

* WHERE...Calumet Harbor IL to Michigan City IN.

* WHEN...Until 6 AM CST Monday.

* 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 hazardous conditions.

&&

$$



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