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EF0 tornado in Grundy County, Tennessee

Tornado December 11, 2021 · Grundy County, Tennessee

EF0
Rating
8.9 mi
Path length
100 yd
Path width
$50K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 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 in Coalmont and quickly produced 90 mph winds that uprooted many trees on Freemont Road. It moved northeast and blew out the walls of a metal building structure and downed additional trees on 20th Avenue South near Highway 108. The tornado weakened as it crossed the highway and continued northeast. It uprooted and snapped trees east of Gruetli-Laager before lifting near Cullen Savage Road north of Barkertown Road.

The wider storm

One of the worst tornado outbreaks ever recorded in the United States struck the Midwest, Ohio Valley, and Tennessee Valley from the evening hours on December 10 into the morning hours on December 11, 2021. Across Middle Tennessee, a total of 16 tornadoes were determined to have touched down, making this the 5th largest tornado outbreak on record in Middle Tennessee. These tornadoes injured 8 people across Middle Tennessee and caused millions of dollars in property and tree damage in many counties. These tornadoes, combined with the 5 tornadoes that occurred just a few days earlier across Middle Tennessee on December 6, 2021, set a new record for the number of tornadoes during the month of December. In addition, many counties that had tornadoes in December 2021 had never recorded a tornado in the month of December before, including Stewart, Humphreys, Cheatham, Wilson, Trousdale, Overton, Pickett, Coffee, and Grundy Counties.

Began near Dogtown (35.3472, -85.7120).

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 999759. Narratives are written by the National Weather Service forecast office that issued the report.

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