A derecho, or long-lived severe weather system with damaging straight-line winds, moved through Arkansas, North Texas and Louisiana on Thursday, tearing roofs off houses, downing huge trees and knocking out power for hundreds of thousands. At least three tornadoes have been confirmed, an EF1 in Hopkinsville, Kentucky, and EF1 near Benton, Kentucky and EF0 near Waldenburg, Arkansas.
"A warm, moist air mass set up throughout Texas, Oklahoma and Arkansas on Thursday. Temperatures were in the upper 80s for much of the region, and dew points were even in the 70s," said weather.com meteorologist Chrissy Warrilow. "This warm, moist air served as the 'fuel' that enhanced and sustained the thunderstorms that developed along a plunging cold front."
Texas
Strong storms that barreled through Dallas and Fort Worth left behind damage to buildings and vehicles, knocked out power for hundreds of thousands and at injured at least two people. Wind gusts reached speeds as high as 83 mph in the town of Wills Point, east of Dallas, according to local storm reports.
At least one person was struck by lightning in Texas, KXII reports. A female teacher at Lamar Elementary School in Denison was getting into her car when lightning struck nearby, the report added. KXII also said she never lost consciousness, but was transferred to Texoma Medical Center for precautionary reasons.
Another person suffered minor injuries after a roof blew off at Arlington Baptist College, the Arlington Police Department reports.
Images on Twitter showed major damage to the Fort Worth Stockyards, a popular tourist attraction with restaurants and clubs. A wall appears to have collapsed and piles of bricks were crushing several vehicles. A revolving door was destroyed by high winds at the University of North Texas Health Science Center, according to National Weather Service storm reports.
http://www.weather.com/safety/thunderstorms/southern-plains-southeast-derecho-20141003
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