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EF0 tornado in St. Mary Parish, Louisiana

Tornado March 21, 2012 · St. Mary Parish, Louisiana

EF0

Rating

0.7 mi

Path length

20 yd

Path width

$100K

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 20 yards (0.01 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 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 large industrial warehouse had its garage door blown in, and several smaller neighboring storage buildings had minor damage with sheet metal peeled off the corners of the buildings. Across the street, sheet metal was pulled off an industrial canopy and debris was blown across Highway 90 into downtown Patterson.

The wider storm

A cold front slowly moved into Southeast Texas and then into far west sections of Louisiana during the 20th. The cold front stalled upon entering Louisiana and then slowly moved back west through the evening before finally moving east in the morning of the 21st. The slow moving boundary produced severe weather and widespread flooding.

Began near Patterson (29.6777, -91.3063).

Other tornadoes from the same storm system

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

EF2 Vermilion Parish EF1 Jefferson Davis Parish EF1 Vermilion Parish EF0 Vermilion Parish

Source: NOAA Storm Events Database, event 366420. Narratives are written by the National Weather Service forecast office that issued the report.

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