Watches, Warnings & Advisories

2 products found for Marine Zone: LMZ740

Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
336 PM CST Mon Nov 10 2025

LMZ740>742-110545-
/O.CON.KLOT.SC.Y.0099.000000T0000Z-251111T0600Z/
/O.NEW.KLOT.SC.Y.0100.251111T1500Z-251113T0300Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
336 PM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM TUESDAY TO 9 PM CST
WEDNESDAY...

* WHAT...For the first Small Craft Advisory, northwest winds to
  25 kt and significant waves to 6 ft occasionally to 8 ft. For
  the second Small Craft Advisory, southwest winds to 30 kt and
  significant waves to 5 ft expected.

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

* WHEN...For the first Small Craft Advisory, until midnight CST
  tonight. For the second Small Craft Advisory, from 9 AM
  Tuesday to 9 PM CST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
312 PM CST Mon Nov 10 2025

LMZ740>745-112115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
312 PM CST Mon Nov 10 2025

This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.

.DAY ONE...Tonight.

Weather hazards expected...

  Hazardous conditions for small craft.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday and Wednesday...
  Hazardous conditions for small craft are likely.
Sunday...
  Hazardous conditions for small craft are likely.

$$

Petr

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