Des Moines, Iowa – Drivers and evening commuters across Iowa could run into thunderstorms capable of producing large hail and sudden wind gusts late Tuesday as a line of storms develops ahead of a passing cold front.
According to the National Weather Service in Des Moines, thunderstorms are expected to form Tuesday afternoon and continue into the evening, with the greatest risk for isolated severe storms across southeastern Iowa. Large hail remains the primary concern, though some storms may also produce damaging wind gusts.
Communities from Des Moines and Ottumwa to Iowa City and Davenport sit within the zone where stronger storms could briefly intensify. Local emergency managers say drivers should watch for rapidly changing conditions during the evening commute, particularly on major routes including Interstate 80, Interstate 35 and U.S. Highway 63. Residents are urged to move vehicles indoors if possible and secure outdoor items that could blow around in gusty winds.
Behind the storms, a cold front will sweep across the state Tuesday night, flipping winds from the south to the northwest and increasing gusts to around 30 to 35 mph. Temperatures will also drop quickly overnight, with many areas falling into the 30s and lower 40s by early Wednesday morning.
The blustery cooldown will be felt statewide Wednesday, and additional advisories could be issued if stronger storms develop later Tuesday.
