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EF1 tornado in Harrison County, Texas

Tornado April 9, 2009 · Harrison County, Texas

EF1
Rating
37.2 mi
Whole path
200 yd
Path width
2
Injuries
$13.2M
Damage as recorded

NOAA records this tornado county by county. Its path ran through Harrison County → Caddo Parish, Louisiana → Bossier Parish, Louisiana; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 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

This storm developed over eastern Harrison County about 6 miles northwest of Waskom. This tornado first touched down about one half mile west of FM 134, continuing east across FM 9 about 3 miles north of Waskom, before entering western Caddo Parish. Numerous trees were uprooted and snapped, especially east of FM 9, and across Highway 169.

There were some homes damaged from fallen trees and also from the tornado itself near Masters Road in east central Harrison County.

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 Jonesville (32.5363, -94.1434).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 154452. Narratives are written by the National Weather Service forecast office that issued the report.

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