Des Moines Register
One tornado watch is set to expire at 9 p.m. this evening for much of central and northern Iowa while another, covering parts of northeast Iowa, southwest Wisconsin and several of the northwestern-most counties in Illinois, is in effect until midnight, according to the National Weather Service.
Polk, Dallas, Story, Linn and Johnson counties were among those included in the pair of watches. According to the watches, severe thunderstorms are possible throughout the evening and bring an increased risk of severe weather.
Numerous tornado warnings were issued across the state Wednesday afternoon and evening. Videos and pictures of funnel clouds, tornadoes touching down and storm damage are circulating the internet.