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EF1 tornado in Union Parish, Louisiana

Tornado April 9, 2009 · Union Parish, Louisiana

EF1
Rating
19.1 mi
Whole path
150 yd
Path width
$600K
Damage as recorded

NOAA records this tornado county by county. Its path ran through Union Parish → Ashley County, Arkansas; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 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

With the assistance of the US Forest Service, numerous trees were snapped and uprooted in the Upper Ouachita Wildlife Refuge in Union Parish. The damage starts 4 miles west of the Ouachita River and ends approximately 0.25 miles from the river.

The wider storm

A strong upper level storm system along with a surface dry line/front

over northeast Texas moved east during the evening hours of April 9th into the early morning hours of April 10th causing long lived supercell thunderstorms. These thunderstorms caused long track tornadoes to occur across southeast Oklahoma, southwest Arkansas, northeast Texas, and north Louisiana.

Began near Litroe (33.0077, -92.1705).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 160068. Narratives are written by the National Weather Service forecast office that issued the report.

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