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EF0 tornado in Lynn County, Texas

Tornado July 21, 2009 · Lynn County, Texas

EF0

Rating

0.4 mi

Path length

50 yd

Path width

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 50 yards (0.03 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

Local law enforcement officials and the public observed a non-mesocyclonic tornado which persisted for two minutes in open fields northwest of New Home. The tornado developed as thunderstorm outflow interacted with new convective development along a pre-existing northwest to southeast oriented low level boundary. The tornado was photographed by a number of observers. Preliminary reports placed the tornado near Slide in southern Lubbock County, however, a detailed report from a resident revealed that the tornado actually occurred four miles west of the intersection of Farm to Market Road 1730 and Lynn County Road 121. The tornado resulted in no damages.

The wider storm

Thunderstorms developed during the afternoon hours of the 21st along a pre-existing low level boundary over the western and southern South Plains of west Texas. One of the initial storms produced quarter size hail near Wilson (Lynn County). Outflow from this storm interacted with the pre-existing boundary and newly developing convection to result in a well-documented non-mesocyclonic tornado near New Home (Lynn County). The most significant impact from the event, however, occurred in northeastern Cochran County during the early evening hours when a pair of thunderstorms produced a swath of large hail that caused major damage to 15,000 acres of cotton crops. Agricultural losses were estimated at $3 million.

Began near Lakeview (33.3561, -101.9816).

Source: NOAA Storm Events Database, event 186593. Narratives are written by the National Weather Service forecast office that issued the report.

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