Marine Weather Message
Issued by NWS Chicago, IL

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586
WHUS73 KLOT 080903
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
303 AM CST Sat Nov 8 2025

LMZ740>742-090000-
/O.NEW.KLOT.GL.A.0018.251109T0600Z-251110T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
303 AM CST Sat Nov 8 2025

...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY
NIGHT...

* WHAT...North gales to 35 kt and significant waves to 9 ft
  occasionally to 12 ft possible.

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

* WHEN...From late tonight through late Sunday 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.

&&

$$

LMZ743>745-090000-
/O.NEW.KLOT.GL.A.0018.251109T1200Z-251110T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
303 AM CST Sat Nov 8 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY
NIGHT...

* WHAT...Northwest gales to 35 kt and significant waves to 12 ft
  occasionally to 16 ft possible.

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

* WHEN...From Sunday morning through late Sunday 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.

&&

$$