Non-severe showers and thunderstorms have been lifting north across northern Illinois and southern Wisconsin Wednesday evening. Thunderstorms earlier in the day produced pea sized hail, but all storm activity has remained below severe limits.
A cold front approaching from the west has allowed a line of storms to develop over eastern Iowa. Those storms will quickly race east as the cold front crosses the Mississippi River between 10pm and Midnight.
A warm front lifting north from central Illinois will keep a low end threat for stronger thunderstorms through sunset, but the greatest risk for severe weather will remain south. Biggest risk with any storm Wednesday evening will be gusty winds. The cold front will pass after Midnight leaving skies mostly cloudy heading into Friday morning.