National Weather Service United States Department of Commerce



Severe thunderstorms developed across portions of eastern Iowa and northwest Illinois on the afternoon of Tuesday, August 10 2021. Storms produced mainly damaging winds in an environment with plentiful instability, with a gust estimated at 70 MPH occurring in Linn County. Damage to trees was reported in and around the Cedar Rapids metro east to Freeport IL. Some reports of hail were received as well, but were mainly at quarter-sized or less.




Surface Analysis Courtesy Weather Prediction Center (WPC)