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A shelf cloud along the leading edge of a derecho in Minnesota Damage caused by a derecho in Barga, Italy. A derecho (/ ˈ d ɛ r ə tʃ oʊ /, from Spanish: derecho [deˈɾetʃo], 'straight') [1] is a widespread, long-lived, straight-line wind storm that is associated with a fast-moving group of severe thunderstorms known as a mesoscale ...
The June 2012 Mid-Atlantic and Midwest derecho was one of the deadliest and most destructive fast-moving severe thunderstorm complexes in North American history. The progressive derecho tracked across a large section of the Midwestern United States and across the central Appalachians into the mid-Atlantic states on the afternoon and evening of ...
A derecho is a significant, ... is characterized as having widespread, long-lived, straight-line winds associated with a fast-moving group of severe thunderstorms. ...
The official scientific criteria of a derecho, as described by the National Weather Service's Storm Prediction Center, pertains to a swath of wind damage that must extend either continuously or ...
The Storm Prediction Center first outlined on April 1 an enhanced risk in areas from north Texas to eastern Illinois, encompassing much of the central United States. In the afternoon hours of the same day, supercell thunderstorms began to develop across northern Texas, moving northeastward and producing large hail.
Bill Bunting of the SPC characterized the later thunderstorms by their "strobe-like lightning, and prolonged thunder that evoked an oceanic roar", and the rains were heavier in the later, slower storm than they had been for the faster derecho. [16] The evening storm also caused damage in areas of New Jersey, including Beach Haven, Hammonton ...
The Midwest region of the U.S. is experiencing a “particularly dangerous situation” Monday as a derecho moves from Iowa into Illinois and toward Chicago, according to the Storm Prediction Center.
The derecho began as a cluster of scattered thunderstorms that had formed during the previous night over south-central South Dakota. These storms tracked east along the South Dakota– Nebraska border and became better organized and coalesced, producing hail with diameters between 1–2 in (25–51 mm) and wind gusts between 60–70 mph (97 ...