Flooding Threat Continues in Portions of Texas; Poor Air Quality in the Great Lakes through the Mid-Atlantic

Widespread life-threatening flash and urban flooding continues in south-central Texas, with considerable flooding impacts possible across central Texas. Wildfire smoke is impacting air quality across much of the Great Lakes region into southern New England and the Mid-Atlantic. Monsoonal thunderstorms may produce isolated to scattered flash flooding across the Southwest into the Great Basin. 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: 349 AM CDT Sat Jul 18 2026
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Today: West winds 15 to 20 kt becoming north late. Chance of showers and thunderstorms. Waves 1 to 2 ft building to 2 to 4 ft.

Tonight: Northeast winds 15 to 25 kt. Patchy smoke. Waves 4 to 7 ft occasionally to 9 ft.

Sunday: East winds around 10 kt becoming northeast. Patchy smoke. Waves 3 to 5 ft subsiding to 2 to 4 ft.

Sunday Night: East winds around 10 kt becoming south overnight. Mostly clear. Waves 1 to 2 ft.







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

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