Watches, Warnings & Advisories



2 products found for Marine Zone: LMZ740

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
348 PM CST Fri Nov 28 2025

LMZ740>745-292200-
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-
348 PM CST Fri Nov 28 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 northwest Indiana nearshore
  in the evening.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday and Sunday...
  Hazardous conditions for small craft are likely.
Wednesday and Thursday...
  Hazardous conditions for small craft are likely.

$$

Kluber

Visit us at www.weather.gov/chicago




Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
237 PM CST Fri Nov 28 2025

LMZ740>742-290445-
/O.NEW.KLOT.SC.Y.0105.251129T1500Z-251201T0400Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
237 PM CST Fri Nov 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM SATURDAY TO 10 PM CST
SUNDAY...

* WHAT...Southeast winds to 30 kt and significant waves to 9 ft
  occasionally to 12 ft expected.

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

* WHEN...From 9 AM Saturday to 10 PM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$