EF1 tornado — St. Bernard Parish, Louisiana

EF1 tornado in St. Bernard Parish, Louisiana

Tornado March 29, 2011 · St. Bernard Parish, Louisiana

EF1

Rating

0.6 mi

Path length

25 yd

Path width

$200K

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 25 yards (0.01 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

The survey team found tornado damage consistent with estimated winds around 105 mph. The vacant 3 story Delacroix Government Complex lost its top two floors, and suffered a collapse of north and east facing brick veneer. Five unstrapped RV trailers were flipped. Two trailers rolled for 45 yards and were totally destroyed. The tornado touched down on Bayou Terre Au Beoufs by the government complex, crossed a marsh field, and recrossed Highway 300 where 4 of the 5 trailers were affected, then lifted over the bayou. Length 0.6 miles, width 25 yards.

The wider storm

Upper level disturbances moving over a very warm and unstable airmass produced numerous reports of severe weather, as well as isolated flash flooding.

Other tornadoes from the same storm system

Source: NOAA Storm Events Database, event 282246. Narratives are written by the National Weather Service forecast office that issued the report.

EF1 tornado in St. Bernard Parish, Louisiana

What the National Weather Service wrote

The wider storm

Other tornadoes from the same storm system

Tornadoes near your address