S. In the mid-levels of the atmosphere, a defined thermal gradient developed over south-central MN which progressed northward into western WI.
Every event with a place to put it; 3 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 MPX wrote it up.
A troughing pattern over the Pacific Northwest ejected a shortwave trough across the Northern Continental U.S. In the mid-levels of the atmosphere, a defined thermal gradient developed over south-central MN which progressed northward into western WI. Forcing for snowfall development was maximized along a narrow band extending from Polk to Barron Counties. This forcing led to heavy snowfall rates exceeding one inch per hour with six to eight inches of snow accumulations.
Highest accumulations were observed:|8.0 inches 2 SE of Chetek, WI|8.0 inches 10 NW of New Auburn, WI|6.5 inches 7 NNW of Amery, WI.
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 Twin Cities, MN wrote its last area forecast discussion before the first event at Mar 21, 5:38 PM CST, 4 hours 22 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Twin Cities/Chanhassen MN 323 PM CDT Thu Mar 21 2024 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 222030- Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington- Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota- Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth- Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk- St. Croix-Pierce-Dunn-Pepin-Eau Claire- 323 PM CDT Thu Mar 21 2024 This Hazardous Weather Outlook is for portions of central and southern Minnesota, and west central Wisconsin. .DAY ONE...Tonight. Widespread snow is expected tonight. Accumulations of 2 to 4 inches are likely, with a band of 4 to 6 inches along and just south of I-94. Consult the Winter Weather Message for additional information. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. A major winter storm will impact the Upper Midwest Sunday through early Tuesday. Heavy snow and blowing snow are expected with significant snow accumulation. The snow may mix with or turn to rain across southern Minnesota into western Wisconsin for a time Monday, resulting in a very wet and heavy snowpack. .SPOTTER INFORMATION STATEMENT... Spotters and snowfall observers are encouraged to report snowfall amounts to the National Weather Service. Borghoff
The national radar mosaic for the moment the first event began.
3 heavy snow. Local standard time, as filed.
Six to eight inches of snow fell across the southern half of the county. Eight inches of snowfall was measured 2 miles SE of Chetek, WI.
Six to eight inches of snow fell across the central region of the county. Six and a half inches of snowfall was measured 7 miles NNW of Amery, WI.
Six to eight inches of snow fell across the extreme northern region of the county. Eight inches of snowfall was measured 10 miles NW of New Auburn, WI.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2024Every state in 2024This day in weather historyWarnings in Wisconsin, March 2024
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 2026-10-01. Each event’s entry at NCEI: 1167367, 1167368, 1167369.