At 4:45, radar showed numerous showers and thunderstorms mainly east of Interstate 35. One line of showers extended from Mason City to New Hampton to Garnavillo. Other clusters of showers and thunderstorms were located in and around Cedar Rapids, and another cluster in Des Moines, Henry, Lee and Louisa counties in SE Iowa. These storms have the capability to drop brief heavy rain and small hail as they move S-SE at about 20 mph.