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EF1 tornado in Bradley County, Tennessee

Tornado April 12, 2020 · Bradley County, Tennessee

EF1
Rating
12.9 mi
Whole path
500 yd
Path width
6
Injuries

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 500 yards (0.28 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

After the Cleveland tornado occluded, the parent mesocyclone spawned another tornado that began near Michigan Avenue Road and Minnis Road. Snapped and uprooted trees were seen in this area along with downed utility poles. The tornado continued moving northeast and strengthened near Corvin and Wilkerson Roads where single family homes sustained significant roof damage, several barns and outbuildings were either partially or completely destroyed, and hundreds of trees were snapped or uprooted. This type of damage continued along Chatata Valley Road through Julian Road. The tornado then began to dissipate along Julian Road northeast of Evans Road where damage was mainly to trees and roof shingles.

The wider storm

A prolonged convective event with deep moist southerly flow in an unstable environment with strong wind shear generated supercell thunderstorms across Southeast Tennessee and Southwest North Carolina. The lengthy period of heavy rain resulted in widespread three to four inch rainfall totals across East Tennessee, Southwest North Carolina, and Southwest Virginia.

Began near East Cleveland (35.1663, -84.8242).

Other tornadoes from the same storm system

1 more tornado the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 877263. Narratives are written by the National Weather Service forecast office that issued the report.

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