National Weather Service United States Department of Commerce

Thunderstorms are developing across southern Wisconsin. Accumulating small hail and gusts to 45 mph possible under the stronger storms. Storms wind down this evening.
There are two possible scenarios for severe storms for Wednesday into Wednesday night. The first one shows impacts remaining south of the Wisconsin and Illinois border, as the warm front and energy remains confined to that area. This would allow for just weaker showers and storms to move through the area. The second scenario brings the warm front and energy northward toward the area, with the risk for all hazards from severe storms into areas along and south of I-94. Uncertainty remains, so keep up with the latest forecasts for this period!
Multiple rounds of showers and thunderstorms may bring locally heavy rainfall to southern Wisconsin on Wednesday. The higher totals are expected to be south of I-94. A farther north warm front would result in higher totals shifting northward.