The weather landscape across Wisconsin has shifted from a broad Tornado Watch to a widespread Severe Thunderstorm Watch as a complex weather system moves through the state. While the immediate threat of tornadoes has decreased for some, the risk of damaging winds and localized flooding remains high through the early morning hours.
Current Alerts and Coverage
- Severe Thunderstorm Watch: Now covers a massive swath of the state, extending from Kenosha in the southeast to La Crosse in the west, and reaching north past Appleton.
- Milwaukee Update: A severe thunderstorm watch was officially issued for Milwaukee at 9:40 p.m. A line of storms is expected to impact the metro area between 2:00 a.m. and 3:00 a.m.
- Tornado Watch: Previously stretched from Ozaukee County to the Iowa border. While many areas had a 5% risk, the Wisconsin Dells and parts of Columbia and Marquette counties saw a slightly higher 10% risk.
Primary Hazards
| Hazard | Affected Areas | Details |
| Damaging Winds | Statewide (Watch areas) | The primary threat for the incoming line of storms. |
| Large Hail | Western Wisconsin | Significant hail has already been reported near the Minnesota border. |
| Flash Flooding | Central Wisconsin | Slow-moving storms increase the risk of rapid water accumulation. |
| Isolated Tornadoes | Milwaukee & Southern WI | Though the Tornado Watch ended, isolated “tornadic” activity cannot be ruled out as the front passes. |
Expert Insight
National Weather Service meteorologist Taylor Patterson emphasized that while the transition from a tornado watch to a thunderstorm watch changes the primary threat, the certainty of activity remains high.
“There is higher confidence they are going to see storms,” Patterson noted. “The uncertainty comes in on if they become tornadic or not.”
What to Expect This Week
Milwaukee County remains under a Hazardous Weather Outlook. Beyond the immediate storms tonight, the NWS expects an active pattern to continue through the end of the week, with potential for recurring rounds of severe weather.
