If outdoors, consider seeking shelter inside a building.

At 1009 AM CST, Doppler radar was tracking a thunderstorm over Brighton, or 11 miles southwest of Washington, moving northeast at 40 mph. HAZARD...Pea size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Iowa City, Washington, Coralville, Kalona, Lone Tree, University Heights, Riverside, Hills, Brighton, Richland, Ainsworth, Pleasant Plain, Coppock, Richmond, West Chester, Washington Airport, Johnson County Fairgrounds, Haskins, Lake Darling State Park, and Washington County Fairgrounds.