NOAA Storm Events Database – 2021 Western Kentucky tornado/Grayson County

NOAA Storm Events Database – 2021 Western Kentucky tornado (Grayson County)
The United States National Oceanic and Atmospheric Administration

The National Oceanic and Atmospheric Administration’s National Centers for Environmental Information finalized report in the Storm Events Database for the 2021 Western Kentucky tornado in Grayson County, Kentucky. This report includes the finalized damage survey (Event Narrative) and statistics for the tornado in the county as well as a meteorological synopsis (Episode Narrative) for the day and storm.

4463765NOAA Storm Events Database – 2021 Western Kentucky tornado (Grayson County)The United States National Oceanic and Atmospheric Administration
Event Details:
Event Tornado
-- Scale EF1
-- Length 4.83 Miles
-- Width 1200 Yards
State KENTUCKY
County/Area GRAYSON
WFO LMK
Report Source NWS Storm Survey
NCEI Data Source CSV
Begin Date 2021-12-10 23:44 CST-6
Begin Location 4NNW YEAMAN
Begin Lat/Lon 37.5791/-86.6109
End Date 2021-12-10 23:45 CST-6
End Location 2NW HICKORY CORNER
End Lat/Lon 37.5971/-86.5557
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage
Crop Damage 0.00K
Episode Narrative Strong southern winds brought warm temperatures and plenty of moisture into an environment of strong wind shear ahead of an advancing cold front. This resulted in unusually warm temperatures for a December day and the ingredients to produce a historic tornado outbreak and flash flooding. This included multiple long track tornadoes. Central Kentucky saw 18 tornadoes that injured 96 and killed 18. An additional death occurred in a flash flood.
Event Narrative This tornado is a continuation of the western Kentucky (Mayfield) tornado and will go down as the longest continuous tornado track on record in the Commonwealth of Kentucky at 163 miles (plus another two miles in Tennessee). This tornado developed in Obion County, Tennessee near Woodland Mills Road before tracking to the northeast through western Kentucky and on into central Kentucky (see Storm Data from the Memphis, Tennessee and the Paducah, Kentucky offices for more information on the beginning portion of this tornado). The tornado finally came to an end in Grayson County, Kentucky at Rough River Dam State Park. This is the third of five segments of this tornado in the Louisville, Kentucky County Warning Area. As the tornado entered Grayson County, the path crossed the Rough River about 1 mile WNW of the Lafayette Golf Club. The tornado snapped several hardwood trees in this area before moving almost a half mile across an open flood plain. The tornado then continued northeast through a heavily wooded area, continuing to snap and uproot hardwood trees along the path. There some strong EF-1 intensity damage happened in a development area a mile north of the Falls of Rough State Resort where intense snarling of a cluster of hardwood trees was indicative of winds just over 100 mph. A well built structure was mostly spared as an inflow vortex fed into the main tornado path around the southeast side of the house. Extensive tree damage occurred in this area where over 100 hardwood trees were snapped and uprooted.
Information about this edition
Edition:
Source: Storm Events Database: https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=996997 (Archived URL)
Contributor(s): National Centers for Environmental Information & National Weather Service
Level of progress:
Notes:
Proofreaders:

This work is in the public domain in the United States because it is a work of the United States federal government (see 17 U.S.C. 105).

Public domainPublic domainfalsefalse