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Multiple Storm Rounds Brace Southern Wisconsin
16 May
Summary
- Southern Wisconsin faces multiple severe weather rounds through Tuesday.
- Friday night storms may produce large hail and damaging winds.
- Monday is anticipated to be the most significant severe weather day.

Southern Wisconsin is set to experience unsettled weather conditions from Friday afternoon through Tuesday, with Friday night, Sunday, and Monday designated as First Alert Days. Several rounds of thunderstorms are anticipated across the region, posing risks of severe weather.
The initial complex of storms is expected Friday evening into early Saturday morning, primarily threatening areas west of Madison with large hail and damaging winds. Saturday will see partly sunny skies and warmer temperatures, with a possibility of further storms developing, especially south of Interstate 90.
Sunday brings another threat as a warm front lifts northward, potentially spawning severe thunderstorms with hail and damaging winds. Monday is predicted to be the most significant day for severe weather, driven by a strong weather system. Conditions are expected to support severe thunderstorms capable of producing large hail, damaging winds, and heavy rainfall.
Tuesday will see a cold front cross the region, offering a final chance for storms before cooler and drier air arrives. Residents are advised to remain weather-aware and have multiple ways to receive warnings throughout the week.