A strong low pressure system tracked from the central Plains through the western Great Lakes region, bringing 8 to 12 inches to portions of central and northeast Wisconsin. The snow fell in two rounds, the first Friday evening with gusty southeast winds and the second early Saturday morning.
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 GRB wrote it up.
A strong low pressure system tracked from the central Plains through the western Great Lakes region, bringing 8 to 12 inches to portions of central and northeast Wisconsin. The snow fell in two rounds, the first Friday evening with gusty southeast winds and the second early Saturday morning.
The strong southeast winds and record high lake levels also caused some flooding along Lake Michigan Saturday morning.
Some of the highest snowfall totals included 11.8 inches in Fish Creek (Door Co.), 10.0 inches in Gills Rock (Door Co.), 9.0 inches near Ephraim (Door Co.), and 8.2 inches in Clintonville (Waupaca Co.).
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 Green Bay, WI wrote its last area forecast discussion before the first event at Jan 17, 2:39 PM CST, 2 hours 21 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
2 winter storm, 1 lakeshore flood. Local standard time, as filed.
The highest snowfall totals across Waupaca County included 8.2 inches in Clintonville and 8.0 inches near Iola.
The highest snowfall totals across Door County included 11.8 inches in Fish Creek, 10.0 inches in Gills Rock, and 9.0 inches near Ephraim.
Strong southeast winds and record high lake levels on Lake Michigan caused flooding at the Algoma Marina parking lot.
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, January 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 2026-09-30. Each event’s entry at NCEI: 865449, 865451, 871964.