Areas of freezing drizzle developed across portions of east central, southeast, and south central Wisconsin during the evening hours of December 29, 2018. The icy conditions led to numerous vehicle accidents and long delays on I-94 in Waukesha and Milwaukee Counties.
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.
Areas of freezing drizzle developed across portions of east central, southeast, and south central Wisconsin during the evening hours of December 29, 2018. The icy conditions led to numerous vehicle accidents and long delays on I-94 in Waukesha and Milwaukee Counties.
The national radar mosaic for the moment the first event began.
2 winter weather. Local standard time, as filed.
Several accidents caused long delays were reported along I-94 in Milwaukee County due to icy road conditions.
The westbound lanes of I-94 at the intersection of U.S. Hwy 18 were closed for more than two hours after icy conditions led to multiple accidents. Local responders attended five accidents on I-94 between Hwy SS and Bluemound Road in Pewaukee.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2018Every state in 2018This day in weather historyWarnings in Wisconsin, December 2018
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: 811057, 811059.