873
WHUS73 KLOT 300916
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
316 AM CST Sun Nov 30 2025

LMZ740>742-301730-
/O.CON.KLOT.SC.Y.0105.000000T0000Z-251201T0400Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
316 AM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CST THIS
EVENING...

* WHAT...Northwest winds to 30 kt and significant waves to 7 ft
  occasionally to 9 ft.

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ743>745-301730-
/O.CON.KLOT.SC.Y.0105.000000T0000Z-251201T1300Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
316 AM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CST MONDAY...

* WHAT...Northwest winds to 30 kt and significant waves to 11 ft
  occasionally to 14 ft. Occasional gale force gusts to 35 kt this
  morning.

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

* WHEN...Until 7 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$