Davenport, Iowa – Severe thunderstorms could erupt across eastern Iowa and western Illinois late Tuesday afternoon, bringing the threat of tornadoes, destructive wind gusts and hail the size of golf balls across the Quad Cities region.
According to the National Weather Service in the Quad Cities, a moderate risk (level 4 of 5) for severe storms stretches across parts of western Illinois east of a Walnut-to-Macomb line, while an enhanced risk (level 3 of 5) reaches west toward Sterling, the Quad Cities and Fairfield, Iowa. Storms capable of becoming rotating supercells are expected to develop between 4 p.m. and 10 p.m. Tuesday.
Communities including Davenport, Bettendorf, Rock Island and Moline could see rapidly intensifying storms during the evening commute. Forecasters warn that supercells may produce golf ball–size hail or larger, damaging wind gusts over 60 mph and isolated tornadoes. Drivers along Interstate 80, Interstate 74 and U.S. Highway 61 should be ready for sudden downpours, reduced visibility and debris on roadways.
Areas farther north and west, including Cedar Rapids, Dubuque and Iowa City, may see elevated thunderstorms capable of producing large hail even if tornado risk remains lower.
Emergency managers urge residents to review shelter plans, charge mobile devices and stay near reliable weather alerts Tuesday evening. Spotter activation is expected across parts of eastern Iowa and northwest Illinois as storms develop.
Calmer conditions return Wednesday, but dry and windy weather later this week could raise grass fire concerns Thursday and Friday. Additional updates or warnings may be issued if storms intensify.
