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The term derecho derives from the Spanish language and means "straight ahead" when translated into English. In meteorology, the word is used to describe a powerful complex of thunderstorms that ...
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 ...
A change in the jet stream pattern will favor long-tracking severe thunderstorm complexes beginning late in the Independence Day weekend and ongoing through next week from the northern Plains to ...
aka "Heartland Derecho", A severe weather event which took place from August 10–11, 2020 across the Midwestern United States and portions of southwestern Ontario. The derecho caused notably high wind speeds of up to 126 mph (203 km/h) recorded in Iowa, with post-damage assessments of up to 140 mph (230 km/h) in some places. The derecho also ...
PDS Special marine warnings are issued by the National Weather Service to inform mariners of weather conditions that present a considerable threat to life and property. On April 19, 2018, the Baltimore / Washington, D.C. forecast office upgraded a special marine warning to PDS status as a gust front approached Chesapeake Bay .
On land, the National Weather Service issues a 'high wind warning' (Specific Area Message Encoding code: HWW) for storm-force winds, which also encompasses the lesser gale-force and greater hurricane force winds. In most cases, the warning applies to winds of 40-114 MPH for at least 1 hour; or any gusts of 58-114 miles per hour on land unless a ...
The derecho raced eastward across the Midwest, causing destruction along its path on Monday, Aug. 10, 2020. (NWS Chicago)
On December 15, a rapidly-deepening low-pressure area contributed to a historic expanse of inclement weather across the Great Plains and Midwestern United States, resulting in an unprecedented [5] December derecho and tornado outbreak across portions of the Northern United States, a region normally affected by snow and cold weather during this time of year.
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