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EF1 tornado in Harrison County, Texas

Tornado April 9, 2009 · Harrison County, Texas

EF1

Rating

2.6 mi

Path length

200 yd

Path width

$1.0M

Damage as recorded

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 western Harrison County, about 7 miles northwest of Hallsville. This tornado first touched down just west Of Will Smith Road at around 9:13 pm, snapping and uprooting numerous trees along the road, with a tree landing atop a mobile home. The tornado continued east, crossing FM 450 near PR 4432 (Charles John Dr.), where several homes were damaged by falling trees, with their windows blown out. A couple of travel trailers were blown off of their locks, while a 14x28ft shop was shoved 2 feet off its foundation. The tornado lifted at approximately 9:23 pm, about 250 yards east of FM 450. This tornado was rated an EF1, with winds of around 100 mph. The path length was 3.1 miles, with a path width of up to 200 yards.

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 Harleton (32.6176, -94.6237).

Other tornadoes from the same storm system

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

EF2 Harrison County EF2 Cass County EF1 Morris County EF0 Cass County

Source: NOAA Storm Events Database, event 154469. Narratives are written by the National Weather Service forecast office that issued the report.

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