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EF1 tornado in Blount County, Alabama

Tornado April 24, 2010 · Blount County, Alabama

EF1

Rating

29.6 mi

Whole path

200 yd

Path width

Death

$658K

Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 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 crossing into Blount County from Jefferson County, the Parrish Tornado crossed Interstate 65 near exit 284, and finally lifted southwest of the Hayden community, between the Interstate and McCay Lake. As in Jefferson County, the damage in Blount County primarily consisted of trees that were blown down and snapped.

The wider storm

A deepening storm system and associated cold front brought widespread severe thunderstorms, including at least 8 tornadoes, to central Alabama.

Began near Hayden (33.8440, -86.8488).

Other tornadoes from the same storm system

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

EF1 Fayette County EF1 Fayette County EF1 Blount County EF1 Marengo County EF0 Sumter County EF0 Hale County EF0 Marion County

Source: NOAA Storm Events Database, event 228124. Narratives are written by the National Weather Service forecast office that issued the report.

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