A period of freezing drizzle, along a surface trough passage, caused black ice and numerous vehicle slide-offs over east central WI during the evening.
Every event with a place to put it; 2 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.
A period of freezing drizzle, along a surface trough passage, caused black ice and numerous vehicle slide-offs over east central WI during the evening.
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 Dec 9, 5:48 PM CST, 1 hour 42 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
2 winter weather. Local standard time, as filed.
Numerous vehicle slide-offs from black ice mainly in the western portion of the county.
Several vehicle slide-offs from black ice mainly on I-41 in the Fond du Lac area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2019Every state in 2019This day in weather historyWarnings in Wisconsin, December 2019
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: 859639, 859640.