Colder air wrapped into southern Wisconsin as low pressure slowly exited through the Upper Great Lakes. Moisture and energy came together and lifted through southeast Wisconsin early Sunday morning.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MKX wrote it up.
Colder air wrapped into southern Wisconsin as low pressure slowly exited through the Upper Great Lakes. Moisture and energy came together and lifted through southeast Wisconsin early Sunday morning. A narrow band of heavy snow from Milwaukee to Elkhorn, roughly 15 miles wide, dropped a swath of 4 to 6 inches of wet snow. Visibility was reduced to a quarter to eighth mile at times, and slushy accumulations caused slippery conditions on roads under the heaviest snow band.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Milwaukee, WI wrote its last area forecast discussion before the first event at Mar 15, 2:28 PM CST, 14 hours 32 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
4 winter weather. Local standard time, as filed.
Storm-total accumulation of 3 to 6 inches over the south half of the county and much lower amounts in the north half. Highest total of 6.5 inches observed in Franklin.
Storm-total accumulation of 3 to 6 inches over the northwest half of the county and much lower amounts in the southeast half. Highest total of 5.0 inches observed in Waterford.
Storm-total accumulation of 3 to 6 inches over the southeast third of the county and much lower amounts in the northwest parts. Highest total of 6.2 inches observed in Muskego.
Storm-total accumulation of 3 to 6 inches over the central and eastern portions of the county and much lower amounts elsewhere. Highest total of 4.0 inches observed in Lake Geneva.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2025Every state in 2025This day in weather historyWarnings in Wisconsin, March 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 1236033, 1236039, 1236041, 1236051.