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EF0 tornado in Cameron County, Texas

Tornado April 20, 2012 · Cameron County, Texas

EF0
Rating
0.1 mi
Path length
10 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 10 yards (0.01 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 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

Cameron County emergency manager reported a funnel and touchdown southwest of Highway 77 in Harlingen. Resident at the intersection of Rangerville Road and CR 800 reported split tree blown across road and debris in backyard.

The wider storm

A rapidly developing disturbance racing through southeast Texas triggered the 'loaded gun' of an unstable atmosphere during the late afternoon of April 20th, and thunderstorms exploded into the atmosphere well above the freezing layer. Just three weeks after McAllen/Edinburg/Pharr/Mission was slammed by buckets of golf ball to baseball size hail and 70 to 75 mph wind gusts, fast moving intense storms dropped significantly lesser amounts of hail and rain, but large hailstones just the same, ranging from golf ball to as large as grapefruits! Isolated small tornadoes touched down briefly in Raymondville and Rangerville (southwest of Harlingen), with minor damage to trees on one property. Automobiles took the brunt of the damage with these storms. Preliminary damage estimates put the dollar amount around $10 million.

Began near Rangerville (26.1202, -97.7330).

Other tornadoes from the same storm system

1 more tornado the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 379487. Narratives are written by the National Weather Service forecast office that issued the report.

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