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Gale Watch 0005
Issued by the Chicago Forecast Office

Action Issued Starts Expiration
New 2026-02-21 03:39:34 2026-02-22 12:00:00 2026-02-23 15:00:00
New 2026-02-21 03:39:34 2026-02-22 12:00:00 2026-02-23 15:00:00
Continued 2026-02-21 09:01:44 2026-02-22 12:00:00 2026-02-23 15:00:00
Time Extended 2026-02-21 14:42:53 2026-02-22 18:00:00 2026-02-23 15:00:00
Continued 2026-02-21 21:55:05 2026-02-22 18:00:00 2026-02-23 15:00:00
Upgraded 2026-02-22 03:24:13 2026-02-22 18:00:00 2026-02-23 15:00:00


Action: New
Issued At: 2026-02-21 03:39:34

585 
WHUS73 KLOT 210939
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
339 AM CST Sat Feb 21 2026

LMZ745-211745-
/O.EXP.KLOT.SC.Y.0021.000000T0000Z-260221T1000Z/
/O.NEW.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/
/O.NEW.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/
Burns Harbor to Michigan City IN-
339 AM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
CST SUNDAY...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
AFTERNOON...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS
MORNING...

* WHAT...For the Small Craft Advisory, northwest winds to 30 kt
  and significant waves to 10 ft occasionally to 13 ft expected.
  For the Gale Watch, northwest gales to 35 kt and significant
  waves to 14 ft occasionally to 18 ft possible.

* WHERE...Burns Harbor to Michigan City IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  noon CST Sunday. For the Gale Watch, from Sunday afternoon 
  through Monday afternoon.

* 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.

&&

$$

LMZ744-211745-
/O.NEW.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/
/O.NEW.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/
Gary to Burns Harbor IN-
339 AM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
CST SUNDAY...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
AFTERNOON...

* WHAT...For the Small Craft Advisory, northwest winds to 30 kt
  and significant waves to 8 ft occasionally to 10 ft expected.
  For the Gale Watch, northwest gales to 35 kt and significant 
  waves to 14 ft occasionally to 18 ft possible.

* WHERE...Gary to Burns Harbor IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  noon CST Sunday. For the Gale Watch, from Sunday afternoon 
  through Monday afternoon.

* 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.

&&

$$

LMZ740>743-211745-
/O.NEW.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
339 AM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM SUNDAY TO 3 AM CST
TUESDAY...

* WHAT...Northwest winds to 30 kt and significant waves to 11 ft 
  occasionally to 14 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet 
  Harbor IL to Gary IN.

* WHEN...From 3 AM Sunday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: New
Issued At: 2026-02-21 03:39:34

585 
WHUS73 KLOT 210939
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
339 AM CST Sat Feb 21 2026

LMZ745-211745-
/O.EXP.KLOT.SC.Y.0021.000000T0000Z-260221T1000Z/
/O.NEW.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/
/O.NEW.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/
Burns Harbor to Michigan City IN-
339 AM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
CST SUNDAY...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
AFTERNOON...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS
MORNING...

* WHAT...For the Small Craft Advisory, northwest winds to 30 kt
  and significant waves to 10 ft occasionally to 13 ft expected.
  For the Gale Watch, northwest gales to 35 kt and significant
  waves to 14 ft occasionally to 18 ft possible.

* WHERE...Burns Harbor to Michigan City IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  noon CST Sunday. For the Gale Watch, from Sunday afternoon 
  through Monday afternoon.

* 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.

&&

$$

LMZ744-211745-
/O.NEW.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/
/O.NEW.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/
Gary to Burns Harbor IN-
339 AM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
CST SUNDAY...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
AFTERNOON...

* WHAT...For the Small Craft Advisory, northwest winds to 30 kt
  and significant waves to 8 ft occasionally to 10 ft expected.
  For the Gale Watch, northwest gales to 35 kt and significant 
  waves to 14 ft occasionally to 18 ft possible.

* WHERE...Gary to Burns Harbor IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  noon CST Sunday. For the Gale Watch, from Sunday afternoon 
  through Monday afternoon.

* 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.

&&

$$

LMZ740>743-211745-
/O.NEW.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
339 AM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM SUNDAY TO 3 AM CST
TUESDAY...

* WHAT...Northwest winds to 30 kt and significant waves to 11 ft 
  occasionally to 14 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet 
  Harbor IL to Gary IN.

* WHEN...From 3 AM Sunday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Continued
Issued At: 2026-02-21 09:01:44

882 
WHUS73 KLOT 211501
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
901 AM CST Sat Feb 21 2026

LMZ744-745-212315-
/O.CON.KLOT.SC.Y.0022.260222T0600Z-260222T1800Z/
/O.CON.KLOT.GL.A.0005.260222T1800Z-260223T2100Z/
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
901 AM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO NOON CST SUNDAY...
...GALE WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY AFTERNOON...

* WHAT...For the Small Craft Advisory, northwest winds to 30 kt
  and significant waves to 10 ft occasionally to 13 ft expected.
  For the Gale Watch, northwest winds to 35 kt and significant
  waves to 14 ft occasionally to 18 ft possible.

* WHERE...Gary to Michigan City IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  noon CST Sunday. For the Gale Watch, from Sunday afternoon 
  through Monday afternoon.

* 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.

&&

$$

LMZ740>743-212315-
/O.CON.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
901 AM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO
3 AM CST TUESDAY...

* WHAT...Northwest winds to 30 kt and significant waves to 11 ft 
  occasionally to 14 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet 
  Harbor IL to Gary IN.

* WHEN...From 3 AM Sunday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Time Extended
Issued At: 2026-02-21 14:42:53

416 
WHUS73 KLOT 212042
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
242 PM CST Sat Feb 21 2026

LMZ744-745-220445-
/O.EXT.KLOT.SC.Y.0022.260222T0600Z-260223T0000Z/
/O.EXT.KLOT.GL.A.0005.260223T0000Z-260223T2100Z/
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
242 PM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST SUNDAY...
...GALE WATCH NOW IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY
AFTERNOON...

* WHAT...For the Small Craft Advisory, northwest winds to 30 kt
  and significant waves to 11 ft occasionally to 14 ft expected.
  For the Gale Watch, northwest gales to 35 kt and significant 
  waves to 14 ft occasionally to 18 ft possible.

* WHERE...Gary to Michigan City IN.

* WHEN...For the Small Craft Advisory, from midnight tonight to 
  6 PM CST Sunday. For the Gale Watch, from Sunday evening 
  through Monday afternoon.

* 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.

&&

$$

LMZ740>743-220445-
/O.CON.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
242 PM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO
3 AM CST TUESDAY...

* WHAT...Northwest winds to 30 kt and significant waves to 11 ft
  occasionally to 14 ft expected. Occasional 35 kt gales are
  possible Sunday night. 

* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet 
  Harbor IL to Gary IN.

* WHEN...From 3 AM Sunday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Continued
Issued At: 2026-02-21 21:55:05

979 
WHUS73 KLOT 220354
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
954 PM CST Sat Feb 21 2026

LMZ744-745-221200-
/O.CON.KLOT.SC.Y.0022.260222T0600Z-260223T0000Z/
/O.CON.KLOT.GL.A.0005.260223T0000Z-260223T2100Z/
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
954 PM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST SUNDAY...
...GALE WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH
MONDAY AFTERNOON...

* WHAT...For the Small Craft Advisory, northwest winds to 30 kt 
  and significant waves to 11 ft occasionally to 14 ft expected. 
  For the Gale Watch, northwest gales to 35 kt and significant 
  waves to 14 ft occasionally to 18 ft possible.

* WHERE...Gary to Michigan City IN.

* WHEN...For the Small Craft Advisory, until 6 PM CST Sunday. 
  For the Gale Watch, from Sunday evening through Monday 
  afternoon.

* 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.

&&

$$

LMZ740>743-221200-
/O.CON.KLOT.SC.Y.0022.260222T0900Z-260224T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
954 PM CST Sat Feb 21 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO
3 AM CST TUESDAY...

* WHAT...Northwest winds to 30 kt and significant waves to 11 ft 
  occasionally to 14 ft expected. Occasional 35 kt gales are 
  possible Sunday night.

* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet 
  Harbor IL to Gary IN.

* WHEN...From 3 AM Sunday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$


Action: Upgraded
Issued At: 2026-02-22 03:24:13

986 
WHUS73 KLOT 220923
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
323 AM CST Sun Feb 22 2026

LMZ744-745-221730-
/O.CON.KLOT.SC.Y.0022.000000T0000Z-260223T0000Z/
/O.UPG.KLOT.GL.A.0005.260223T0000Z-260223T2100Z/
/O.NEW.KLOT.GL.W.0010.260223T0000Z-260223T2100Z/
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
323 AM CST Sun Feb 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 3 PM CST
MONDAY...

* WHAT...For the Small Craft Advisory, northwest winds to 30 kt
  and significant waves to 11 ft occasionally to 14 ft. For the
  Gale Warning, northwest winds to 35 kt and significant waves to
  14 ft occasionally to 18 ft expected.

* WHERE...Gary to Michigan City IN.

* WHEN...For the Small Craft Advisory, until 6 PM CST this 
  evening. For the Gale Warning, from 6 PM this evening to 3 PM 
  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>743-221730-
/O.CON.KLOT.SC.Y.0022.000000T0000Z-260224T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
323 AM CST Sun Feb 22 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
TUESDAY...

* WHAT...Northwest winds to 30 kt and significant waves to 11 ft 
  occasionally to 14 ft.

* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet 
  Harbor IL to Gary IN.

* WHEN...Until 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$



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