Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Coastal Waters Forecast for Calumet Harbor IL to Gary IN (LMZ743) (Text-Only)
NWS Forecast for: Calumet Harbor IL to Gary IN (LMZ743)
Issued by: National Weather Service Chicago, IL
Last Update: 245 PM CST Tue Dec 30 2025




Tonight: Southwest winds 15 to 25 kt becoming northwest late. Snow in the evening. Waves 3 to 5 ft.

Wednesday: Northwest winds 15 to 25 kt increasing to 30 kt in the afternoon. A chance of flurries in the morning, then snow in the afternoon. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.

Wednesday Night: Northwest winds to 30 kt diminishing to 15 to 25 kt. Chance of snow in the evening. Freezing spray. Waves 5 to 8 ft occasionally to 10 ft.

Thursday: West winds 10 to 20 kt. Partly cloudy in the morning, then becoming mostly cloudy. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.







Zone Forecast: Calumet Harbor IL to Gary IN (LMZ743)

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