National Weather Service United States Department of Commerce

Expect significant ice/sleet accumulations beginning tonight and lasting through Thursday as a messy wintry system brings a mix of snow, sleet, freezing rain, and rain to northeast Wisconsin. Highest ice totals of 0.25 to 0.5" are expected across portions of central to far northeast Wisconsin, though most areas will receive at least 0.1". Impacts to the Thursday morning commute are expected, so consider altering travel plans or allow extra time to reach your destination.
Highest ice amounts of 0.25 to 0.5 inches will be possible over portions of central to far northeast Wisconsin. When combined with gusty winds, power outages and broken tree limbs will be possible, as well as ice-covered spots on roads during the Thursday morning commute.
As the wintry mix departs the area early Thursday afternoon, warmer air arrives from the south, bringing with it the potential for strong to severe storm development late Thursday afternoon and evening. Main hazards with any stronger storms would be hail up to 1", wind gusts to 70 mph, and brief periods of heavy rain.