National Weather Service United States Department of Commerce

Severe storms are possible Monday late afternoon/evening. Best chances likely toward the WI/IL border at this time. All hazards would become possible with this event if the warm front makes it far enough north, though latest trends have kept the front a bit further south.
There are two scenarios that will determine the extent of the severe storms Monday afternoon and evening. If the warm front only gets to the WI/IL border (southern solution), this will result in less severe weather. A farther north solution would result in more severe weather.
Along with severe potential on Monday, moderate to heavy rain will be possible within any storms that develop. There is medium potential for over 1 inch of rain, which could lead to urban and lowland flooding and add to or extend existing river flooding.