National Weather Service United States Department of Commerce

Widespread Precipitation and Gusty Winds in the West; Snow from the Great Lakes to the Northeast

A Pacific storm system is expected to bring strong winds and more precipitation to the western U.S., along with the likelihood of snowfall into the Sierra Nevada. Accumulating snow will develop downwind from the Great Lakes into parts of the Northeast through Saturday. Polar air will surge into the eastern half of the country this weekend. Read More >

Overview

Numerous severe thunderstorms formed ahead of an approaching cold front during the late afternoon and evening of Friday December 10th, 2021.  Large hail, damaging winds and tornadoes occurred across central and eastern Missouri as well as south central Illinois.  Unfortunately two of the tornadoes were very strong (rated EF-3 on the Enhanced Fujita Scale) and responsible for 7 fatalities (one near Defiance, Missouri and six at an Amazon Facility near Edwardsville, Illinois). 

This page is a collection of the damage surveys, photographs, radar imagery, and storm reports for this event.  All information listed here is preliminary and subject to change as new information becomes available. 

For a walkthrough of the event, check out our ArcGIS StoryMap.
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