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EF1 tornado in Mobile County, Alabama

Tornado April 11, 2013 · Mobile County, Alabama

EF1

Rating

0.8 mi

Path length

75 yd

Path width

$1.5M

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 75 yards (0.04 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

A brief tornado developed along a squall line of thunderstorms moving across east central Mobile county, producing significant damage to 3 large storage warehouses, various outbuildings and numerous automobiles at the Evonik chemical processing plant on Degussa Road near the Theodore Industrial Canal. Approximately 30 employee automobiles had the windows broken from flying debris.

The wider storm

On the Afternoon of Thursday April 11, a line of strong to briefly severe thunderstorms crossed Southwest Alabama with isolated reports of severe weather damage.

Began near Laurendine (30.5131, -88.1456).

Source: NOAA Storm Events Database, event 435326. Narratives are written by the National Weather Service forecast office that issued the report.

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