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EF1 tornado in Madison County, Kentucky

Tornado December 11, 2021 · Madison County, Kentucky

EF1
Rating
0.2 mi
Path length
75 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

NOAA recorded where this tornado touched down but not where it lifted, so it appears as a point. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

The tornado touched down just west of Highway 595, northwest of the Kirksville community in western Madison county. There were some twisted trees in a forest grove. The tornado then hit an old farmhouse as well as a 30 X 50 foot barn. Damage from the barn was thrown to the southeast, east, northeast, and north direction. This tornado was very intermittent and was skipping with peak wind speeds of 90 mph, and widths ranging from 40 yards to a max of 75 yards.

The NWS drone found a few twisted trees up to a quarter of a mile northeast of the farmhouse. There was no damage past that point. Immediately north of the farmhouse tornado damage, there was an older barn destroyed as well as an older tree knocked over. This was straight line wind damage of 50 to 55 mph.

The wider storm

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.

Began near Round Hill (37.6870, -84.4196).

Other tornadoes from the same storm system

12 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 996921. Narratives are written by the National Weather Service forecast office that issued the report.

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