Severe Thunderstorm and Tropical Storm Bertha Impacts
Numerous severe thunderstorms are expected across a broad region from the Ohio Valley to the Mid-Atlantic and Northeast States today into tonight. Swaths of damaging wind gusts are expected and some tornadoes are possible. Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the Florida Panhandle westward to southeastern Louisiana later today and Wednesday. Read More >
Hazardous Weather Conditions
Last Update: 240 PM CDT Tue Jul 21 2026
For More Weather Information:
8NM ESE Chicago IL
Marine Zone Forecast
Tonight
North to northeast winds 20 to 25 kt diminishing to 15 to 20 kt. Scattered showers in the evening, then isolated showers after midnight. Waves 3 to 5 ft building to 6 to 9 ft occasionally to 12 ft.
Wednesday
North winds 15 to 25 kt. Partly cloudy in the morning then clearing. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft.
Wednesday Night
Northeast winds 10 to 15 kt becoming north around 5 kt overnight. Mostly clear. Waves 3 to 5 ft subsiding to 2 to 4 ft.
Thursday
West winds around 5 kt becoming southeast 10 to 15 kt in the afternoon. Mostly sunny. Waves 1 to 2 ft.
Additional Forecasts and Information
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