Marine Weather Message
Issued by NWS Chicago, IL

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107
WHUS73 KLOT 100908
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
308 AM CST Mon Nov 10 2025

LMZ740>742-101715-
/O.CON.KLOT.GL.W.0027.000000T0000Z-251110T1200Z/
/O.NEW.KLOT.SC.Y.0099.251110T1200Z-251111T0600Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
308 AM CST Mon Nov 10 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

* WHAT...For the Gale Warning, northwest gales to 35 kt and
  significant waves to 12 ft occasionally to 16 ft expected. For
  the Small Craft Advisory, northwest winds to 30 kt and
  significant waves to 10 ft occasionally to 13 ft expected.

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

* WHEN...For the Gale Warning, until 6 AM CST early this
  morning. For the Small Craft Advisory, until midnight CST
  tonight.

* 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>745-101715-
/O.CON.KLOT.GL.W.0027.000000T0000Z-251110T1200Z/
/O.NEW.KLOT.SC.Y.0099.251110T1200Z-251111T1200Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
308 AM CST Mon Nov 10 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST TUESDAY...

* WHAT...For the Gale Warning, northeast gales to 35 kt and
  significant waves to 12 ft occasionally to 16 ft. For the Small
  Craft Advisory, northwest winds to 30 kt and significant waves
  to 10 ft occasionally to 13 ft expected.

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

* WHEN...For the Gale Warning, until 6 AM CST early this
  morning. For the Small Craft Advisory, until 6 AM CST Tuesday.

* 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.

&&

$$