964
WHUS73 KLOT 271547
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
947 AM CST Thu Nov 27 2025

LMZ743>745-280000-
/O.CON.KLOT.GL.W.0029.000000T0000Z-251128T0400Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
947 AM CST Thu Nov 27 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 10 PM CST THIS EVENING...

* WHAT...Northwest gales to 35 kt and significant waves to 11 ft
  occasionally to 14 ft expected.

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

* WHEN...Until 10 PM CST this evening.

* 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>742-280000-
/O.CON.KLOT.SC.Y.0104.000000T0000Z-251128T1000Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
947 AM CST Thu Nov 27 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CST FRIDAY...

* WHAT...Northwest winds to 30 kt and significant waves to 5 ft.

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

* WHEN...Until 4 AM CST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$