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EF1 tornado in Dallas County, Texas

Tornado May 24, 2011 · Dallas County, Texas

EF1
Rating
1.4 mi
Path length
500 yd
Path width
$150K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 500 yards (0.28 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 NWS Storm Survey determined that an EF-1 tornado occurred in the city of Irving, south of Highway 183. This tornado began along West Grauwyler Road and traveled nearly due south about one and a third miles before lifting near Story Road and 5th Street. Significant tree damage occurred in the Sherwood Forest neighborhood and some roofs were damaged in the same neighborhood. Most of the damage occurred south of Conflans Road along Huntington Drive. One large tree fell through the second story of a home. A small apartment complex at the end of Highland Park Drive was also significantly damaged. The roof was partially torn off one building, and the chimney and A/C vents were also torn off the same roof. Roof damage was observed on other apartment buildings and many windows were broken. South of the apartment complex, across Rock Island Road, the metal roof of a small retail building was torn off, and other buildings in the same retail center sustained damage. Significant tree damage also occurred along the southern portions of the tornado track. Maximum estimated winds were 105 MPH.

The wider storm

Three rounds of thunderstorms affected north Texas with 10 tornadoes confirmed. The atmosphere was highly unstable on this day and a High Risk was issued by the Storm Prediction Center for the northwestern counties of north Texas while a Moderate Risk covered much of the rest of north Texas. A strong upper level disturbance approaching from the west interacted with a dryline across the western portions of north Texas, and the first round of storms began to develop around 330 pm in the western counties. The first two rounds of storms remained along and north of Interstate 20 but the third round of storms later that night moved through most of the region as a line of storms. The most significant tornado occurred in the western limits of the city of Denton where EF-2 damage occurred. An EF-1 tornado also occurred in the city of Irving in Dallas County, and softball sized hail fell in the northern portions of the Metroplex. In the city of Dallas, one person died from electrocution after going outside around live, downed wires after a storm had passed.

Began near Sowers (32.8291, -96.9811).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 309286. Narratives are written by the National Weather Service forecast office that issued the report.

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