Snow accumulation of 1-3 inches and snow covered roads. The snow began in the early evening of February 12th for portions of southern WI with relatively light winds at the time.
Every event with a place to put it; 15 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.
Snow accumulation of 1-3 inches and snow covered roads. The snow began in the early evening of February 12th for portions of southern WI with relatively light winds at the time. However, the passage of an arctic front from the late evening into the early morning hours made for gusty north winds of 25 to 35 mph, blowing and drifting snow, reduced visibility, and continued hazardous travel. Some vehicle slide-offs and accidents occurred from the evening into the next morning. A two-vehicle accident closed all southbound lanes of I/39/90/94 just north of highway 60 in southern Columbia County for approximately 2 hours during the early morning.
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 Feb 12, 5:58 PM CST, 2 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
15 winter weather. Local standard time, as filed.
Snow accumulation of 1-2 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 1-2 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 1-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 2-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 1-3 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility.
Snow accumulation of 1-2 inches. Gusty north winds of 25 to 35 mph with some blowing and drifting snow and reduced visibility. A two-vehicle accident closed all southbound lanes of I/39/90/94 just north of highway 60 in southern Columbia County for approximately 2 hours during the early morning.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2020Every state in 2020This day in weather historyWarnings in Wisconsin, February 2020
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: 868649, 868650, 868652, 868653, 868654, 868655, 868656, 868657, 868658, 868660, 868661, 868662, 868651, 868659, 868647.