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EF1 tornado in Boyle County, Kentucky

Tornado December 11, 2021 · Boyle County, Kentucky

EF1
Rating
14.9 mi
Whole path
100 yd
Path width

NOAA records this tornado county by county. Its path ran through Boyle County → Boyle County → Boyle County → Boyle County → Garrard County → Garrard County → Garrard County; the totals above are for the whole tornado.

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 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

This tornado formed approximately 2.9 miles east northeast of Danville Goodall Airport near Chrisman Lane and tracked northeast for approximately 5.2 miles before crossing into western Garrard County. The tornado continued approximately 1.9 miles into Garrard County before dissipating at 0411 EST. In Boyle County, The tornado began on the northeast side of Highway 150 near the Boyle/Lincoln County line where a barn outbuilding had severe roof damage. The tornado continued to the northeast along Chrisman Lane where barns had roof uplift damage. After the tornado moved past Cooks Loop, damage continued on the other side of Chrisman Lane where a barn received roof damage. There was extensive tree damage, with trees being uprooted or snapped along Chrisman Lane near Chrisman Circle. The tornado then continued along mostly rural portions near the Boyle and Lincoln County Lines. To the east northeast of Hedgeville, several barns and homes in this area had major roof damage along Lancaster Road. The tornado continued with tree damage along Rankin Road before crossing into Garrard County.

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 Danville Goodall Arp (37.6030, -84.7260).

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 997263. Narratives are written by the National Weather Service forecast office that issued the report.

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