Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >

Coastal Waters Forecast for Northerly Island to Calumet Harbor IL (LMZ742) (Text-Only)
NWS Forecast for: Northerly Island to Calumet Harbor IL (LMZ742)
Issued by: National Weather Service Chicago, IL
Last Update: 911 PM CDT Fri Jun 19 2026




Rest Of Tonight: West winds 10 to 20 kt diminishing to 10 to 15 kt late this evening. Chance of showers through midnight. waves 1 to 3 ft.

Saturday: West winds 15 to 20 kt becoming northeast 10 to 15 kt in the afternoon. Mostly sunny. Waves 1 to 3 ft.

Saturday Night: East winds 10 to 15 kt becoming northeast around 5 kt overnight. Partly cloudy in the evening, then becoming mostly cloudy. Waves 1 ft or less.

Sunday: East winds around 10 kt increasing to 15 to 25 kt. Chance of showers in the morning, then showers likely and slight chance of thunderstorms in the afternoon. Waves around 1 ft building to 2 to 4 ft.







Zone Forecast: Northerly Island to Calumet Harbor IL (LMZ742)

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