Watches, Warnings & Advisories



3 products issued by NWS for: 4NM ENE Chicago IL

Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
935 PM CST Thu Jan 22 2026

LMZ740>743-231145-
/O.CON.KLOT.GL.W.0006.000000T0000Z-260123T0900Z/
/O.CON.KLOT.SC.Y.0012.260123T0900Z-260123T2100Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
935 PM CST Thu Jan 22 2026

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM CST FRIDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 3 PM CST
FRIDAY...

* WHAT...For the Gale Warning, northwest gales to 35 kt and
  significant waves to 6 ft occasionally to 8 ft expected. For the
  Small Craft Advisory, northwest winds to 30 kt and significant
  waves to 6 ft occasionally to 8 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet
  Harbor IL to Gary IN.

* WHEN...For the Gale Warning, until 3 AM CST Friday. For the
  Small Craft Advisory, from 3 AM to 3 PM CST Friday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$




Gale Warning

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
935 PM CST Thu Jan 22 2026

LMZ740>743-231145-
/O.CON.KLOT.GL.W.0006.000000T0000Z-260123T0900Z/
/O.CON.KLOT.SC.Y.0012.260123T0900Z-260123T2100Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
935 PM CST Thu Jan 22 2026

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM CST FRIDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 3 PM CST
FRIDAY...

* WHAT...For the Gale Warning, northwest gales to 35 kt and
  significant waves to 6 ft occasionally to 8 ft expected. For the
  Small Craft Advisory, northwest winds to 30 kt and significant
  waves to 6 ft occasionally to 8 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet
  Harbor IL to Gary IN.

* WHEN...For the Gale Warning, until 3 AM CST Friday. For the
  Small Craft Advisory, from 3 AM to 3 PM CST Friday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$




Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
225 PM CST Thu Jan 22 2026

LMZ740>745-232030-
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-
225 PM CST Thu Jan 22 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...

  Gale force winds and or very hazardous waves.
  Significant Freezing Spray Risk.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
  Hazardous conditions for small craft are likely.
  Significant Freezing Spray Risk.
Sunday through Wednesday...
  Hazardous conditions for small craft are likely.

$$

- Izzi

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