Watches, Warnings & Advisories



3 products issued by NWS for: 14NM NNW Evanston IL

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
219 PM CDT Wed Mar 11 2026

LMZ740>745-121930-
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-
219 PM CDT Wed Mar 11 2026

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...Thursday through Tuesday.

Thursday and Friday...
  Gale force winds and very hazardous waves.
Sunday and Monday...
  Gale force winds and very hazardous waves.
Tuesday...
  Hazardous conditions for small craft are likely.

$$

KJB

Visit us at www.weather.gov/chicago




Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
250 PM CDT Wed Mar 11 2026

LMZ740-741-120400-
/O.CON.KLOT.SC.Y.0029.000000T0000Z-260312T0900Z/
/O.NEW.KLOT.GL.A.0007.260313T0300Z-260314T0000Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
250 PM CDT Wed Mar 11 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT
THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
EVENING...

* WHAT...For the Small Craft Advisory, northwest winds to 25 kt
  and significant waves to 7 ft occasionally to 9 ft. For the Gale
  Watch, southwest to west winds to 45 kt with gusts to 50 kt and
  significant waves to 9 ft occasionally to 12 ft possible.

* WHERE...Winthrop Harbor to Northerly Island IL.

* WHEN...For the Small Craft Advisory, until 4 AM CDT Thursday.
  For the Gale Watch, from Thursday evening through Friday
  evening.

* IMPACTS...Strong winds can cause hazardous waves which could
  capsize or damage vessels and reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$



Gale Watch

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
250 PM CDT Wed Mar 11 2026

LMZ740-741-120400-
/O.CON.KLOT.SC.Y.0029.000000T0000Z-260312T0900Z/
/O.NEW.KLOT.GL.A.0007.260313T0300Z-260314T0000Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
250 PM CDT Wed Mar 11 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT
THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
EVENING...

* WHAT...For the Small Craft Advisory, northwest winds to 25 kt
  and significant waves to 7 ft occasionally to 9 ft. For the Gale
  Watch, southwest to west winds to 45 kt with gusts to 50 kt and
  significant waves to 9 ft occasionally to 12 ft possible.

* WHERE...Winthrop Harbor to Northerly Island IL.

* WHEN...For the Small Craft Advisory, until 4 AM CDT Thursday.
  For the Gale Watch, from Thursday evening through Friday
  evening.

* IMPACTS...Strong winds can cause hazardous waves which could
  capsize or damage vessels and reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$