Davenport, Iowa – Drivers across eastern Iowa and western Illinois could face two rounds of thunderstorms Friday, including a stronger evening system capable of 70 mph wind gusts, large hail, and isolated tornadoes along major travel routes including I-80, I-74, and I-280.
The first wave of storms is expected early Friday morning as a band of thunderstorms moves northeast across the region. While this initial round may produce lightning and brief heavy rain, the severe weather threat during the morning hours appears limited.
According to the National Weather Service Quad Cities office, the more significant threat may develop later Friday as the atmosphere becomes more unstable ahead of a cold front moving through the Mississippi River Valley. A second round of storms is expected to develop late Friday afternoon into Friday night, with the potential to organize into stronger thunderstorms.
Cities including Davenport, Bettendorf, Rock Island, and Moline could see storms redevelop by the early evening hours. Drivers traveling along I-80 and I-74 near the Quad Cities may encounter rapidly changing weather conditions including strong wind gusts, intense rainfall, and hail that could reduce visibility and create hazardous driving conditions.
Forecasters say storms during the evening could strengthen into a more organized line as they move east across northwest Illinois, increasing the potential for damaging winds.
Residents across Clinton, Muscatine, and Burlington may also see strong storms during the evening or overnight hours as the cold front continues eastward.
Meteorologists note there is still some uncertainty in how storms will evolve Friday evening, but the environment could support a few stronger storms capable of producing very large hail or a brief tornado.
Residents are encouraged to stay alert for weather updates Friday and ensure they have multiple ways to receive warnings as storms approach.
