National Weather Service United States Department of Commerce

Overview

On the evening of Friday, December 10, 2021, a potent storm system moving across the central United States resulted in widespread severe weather across the region, including a significant long track tornadoes. NWS storm damage surveys found a violent EF-4 tornado began in far northwest Tennessee and moved across western Kentucky, resulting in significant destruction to portions of the region. The tornado began in Obion County, in northwest Tennessee, and tracked across 11 counties in western Kentucky: Fulton, Hickman, Graves, Marshall, Lyon, Caldwell, Hopkins, Muhlenberg, Ohio, Breckenridge, and Grayson. Its 165.7 mile long path length was on the longest for a tornado in U.S. history.  Another long-track EF-3 tornado with estimated peak winds of 160 mph started in Dyer County, TN, and traveled 122.7 miles through northwest Tennessee and into Christian and Todd Counties in western Kentucky. For a summary of all the tornadoes that occurred across our region, click here.

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Environment

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Sig Tor Parameter at 6 PM 0-3 km SRH valid at 9 PM 300mb wind and height at 9 PM


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0-1km SRH at 9 PM Surface map valid at 9 PM Mixed-layer cape at 9 PM

 

 

Additional Information

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SPC Day 1 Outlook update issued at 10:18 AM  SPC Day 1 Tornado Probability issued at 10:18 AM SPC Day 1 Wind Probability issued at 10:18 AM SPC Day 1 Hail Probability issued at 10:18 AM
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Tornado Watch #552. 

Tornado Watch #554.  Tornado Watch #559. 

 

Recovery

NWS Paducah plans to document the recovery of cities and towns that were devastated during this tornado outbreak. Below are some pictures and videos showing the recovery work that happened in 2022. 
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Convoy of Hope in Lyon County (Lyon County EMA)

Rebuilding homes in Lyon County (Lyon County EMA) 

Rebuilding homes in Lyon County (Lyon County EMA) 

Delivering new appliances to tornado victims in Lyon County (Lyon County EMA)

Recovery efforts in Princeton, Dawson Springs, and Bremen. Filmed in August 2022 by Chris Conley/270 Drone Aerial Imagery.

Time lapse of home reconstruction in Mayfield.
Courtesy of Ohio Valley Aerial.