National Weather Service United States Department of Commerce

Will see a couple rounds of storms across southern WI tonight with a few of them capable of producing hail. Any taller more persistent storms may produce hail up to around an inch, but most will be peas-pennies. This activity is expected to exit to the east around 3-5 AM CDT Saturday morning. Also persistent moderate to heavy rain over the same area main produce minor flooding and ponding, especially in low-lying areas
Scattered showers and thunderstorms are expected to develop and move east northeast into areas west of Madison between 2 PM and 4 PM this afternoon. This activity will spread across the rest of southern Wisconsin into this evening and become more widespread. The peak period will be with a broken line of thunderstorms between 10 PM this evening and 3 AM Saturday morning. Hail up to one inch in diameter is possible with the stronger storms. In addition, repeated rounds of storms may bring minor street and lowland flooding. Keep up with the forecast and stay weather aware into tonight!