991
WHUS73 KLOT 010402
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
1002 PM CST Sun Nov 30 2025

LMZ740>742-010900-
/O.CON.KLOT.SC.Y.0105.000000T0000Z-251201T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
1002 PM CST Sun Nov 30 2025

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

* WHAT...Significant waves to 6 ft occasionally to 8 ft.

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

* WHEN...Until 3 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.

&&

$$

LMZ743>745-011215-
/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-
1002 PM CST Sun Nov 30 2025

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

* WHAT...Significant waves to 9 ft occasionally to 12 ft.

* 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.

&&

$$