EF1 tornado in St. John the Baptist Parish, Louisiana

Tornado May 28, 2014 · St. John the Baptist Parish, Louisiana

EF1

Rating

2.5 mi

Path length

75 yd

Path width

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 National Weather Service storm survey confirmed an EF-1 tornado moved from just west of Edgard to east of Garyville. In the Edgard area, a large door at a firehouse was damaged, along with several trees and power poles. In the east bank areas, the tornado passed across an oil refinery causing some damage. Maximum winds were estimated at 105 mph.

The wider storm

An upper low moving across Oklahoma and Arkansas aided in the development of several rounds of thunderstorms beginning early in the morning of the 28th and continuing into the 29th. Several tornadoes were reported, and heavy rain also produced flash flooding.

Began near Lions (30.0389, -90.5975).

Source: NOAA Storm Events Database, event 512392. Narratives are written by the National Weather Service forecast office that issued the report.

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