Severe Thunderstorms and Heavy Rain Across the Central US and Central Appalachians

Severe thunderstorms producing damaging winds, hail and possibly a few tornadoes are expected across parts of the central Plains and the Missouri Valley. Heavy rainfall and flash flooding is also expected in the area. Thunderstorms and heavy rain may also bring additional flooding impacts to the central Appalachians. High temperatures and critical fire weather conditions expected in the Southwest. Read More >

Preliminary Event Overview

The second winter storm this week struck during the Thanksgiving weekend, impacting Wisconsin from late Saturday evening November 30th through Sunday December 1st. The storm developed over the Central Plains early Saturday, then quickly moved east to the Wisconsin/Illinois border on Sunday. Warm air aloft brought a mix of rain, sleet, freezing rain, and snow to the area Saturday afternoon and Saturday evening, transitioning to all snow by Saturday night and continuing into Sunday. A band of 8 to 12 inches fell across northern Wisconsin, with some areas receiving as much as 15 inches of snow. Further south snowfall totals were lower in the 4 to 8 inch range, however gusty winds caused some downed trees and power outages across the region. In addition to the wintry weather, strong winds and abnormally high lake levels caused lake shore flooding along Lake Michigan and the Bay of Green Bay, especially in Brown and Oconto Counties.

Preliminary storm total snowfall

Figure 1 - Preliminary estimate of storm total snowfall.

** This overview will be updated as new information becomes available.

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Severe Thunderstorms and Heavy Rain Across the Central US and Central Appalachians

Second Major Winter Storm Within a Week Strikes Wisconsin