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EF1 tornado in Hamilton County, Tennessee

Tornado February 28, 2011 · Hamilton County, Tennessee

EF1

Rating

2.2 mi

Path length

90 yd

Path width

$1.2M

Damage as recorded

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

An EF1 tornado touched down at Signal Mountain. The path length was 2.2 miles and the path width from 60 to 90 yards. The max wind of 90 mph caused damage to an estimated 25 homes and numerous trees were downed.

The wider storm

A strong storm system moved through the area on February 28th, producing three tornadoes in southeast Tennessee and widespread flooding in east Tennessee. One person died.

Began near Signal Mtn (35.1300, -85.3500).

Other tornadoes from the same storm system

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

EF1 Hamilton County EF0 Marion County

Source: NOAA Storm Events Database, event 284377. Narratives are written by the National Weather Service forecast office that issued the report.

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