TornadoLookup

Home / Texas / Harrison

EF3 tornado in Harrison County, Texas

Tornado January 20, 2010 · Harrison County, Texas

EF3
Rating
15.6 mi
Whole path
1,087 yd
Path width
$1.5M
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 1,087 yards (0.62 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF3 means. On the Enhanced Fujita scale, EF3 is severe damage: whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, consistent with estimated gusts of 136–165 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 tornado first touched down in a wooded area west of Ireland Williams Road. The tornado quickly intensified as it approached Interstate 20 near mile marker 628 where 2 businesses were destroyed on both the south and north services roads. One of the businesses was a metal building and the other was a mobile home. One home was completely destroyed with only a few interior walls remaining. A second home sustained major damage to the roof and carport. Debris was scattered across interstate 20 and Hwy 80. Several other homes were damaged further east along both sides of the service road. Many trees were snapped and uprooted in the area'some were snapped down close to the base. The tornado continued northeast crossing Bellview Road into Jonesville, TX where a grocery store roof was peeled and walls were blown out of a large warehouse. The tornado also damaged some metal buildings north of Jonesville along FM 134. The tornado tracked east across a wooded area snapping and uprooting trees crossing FM 9 headed east into Caddo Parish in LA. Maximum winds are estimated at 150-160 mph.

The wider storm

A very warm and unstable air mass developed across the region on January 20th. This air mass was accompanied by unusually high dewpoint values for late January with ambient temperatures approaching the 70 degree mark. A very strong and vigorous storm system moved out of the Great Basin and into the Southern Plains and Lower Mississippi Valley during the late afternoon and evening hours of January 20th. Wind shear throughout the atmosphere was very strong and supportive of strong to severe thunderstorms. Low level wind shear was significant enough such that super cell thunderstorms developed across the region, producing tornadoes, large hail and damaging wind gusts.

Began near Crossroads (32.4869, -94.1689).

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 203448. Narratives are written by the National Weather Service forecast office that issued the report.

Tornadoes near your address

See every tornado that passed near a place you know, measured to its path.