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As the derecho moved through Ohio, a second storm developed in Iowa and tracked into northern Illinois. The earlier derecho had used up most of the convective energy in the atmosphere, so this second storm did not become another derecho. Nonetheless, a small MCS with a bow echo developed and became severe as it moved along this track.
Low dewpoint derecho – A derecho that occurs in an environment of comparatively limited low-level moisture, with appreciable moisture confined to the mid-levels of the atmosphere. Such derechos most often occur between late fall and early spring in association with strong low-pressure systems.
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 spawned an outbreak of weak tornadoes, and resulted in an estimated $11 billion of damage. In addition, certain areas reported torrential rain and large hail. [69]
June 29, 2012, is a difficult day for those in and around Washington, D.C., to forget. On that day, an intense line of extremely gusty thunderstorms taught millions of people a new word: derecho.
On December 15, 2021, 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.
The derecho caused widespread wind damage from Iowa to Indiana and produced the tornado that hit the Des Moines metro. Storms spawning a EF1 tornado in Iowa on Monday were part of a derecho. What ...
At least seven people were killed by the storms, dubbed the Houston derecho by the National Weather Service, [7] which brought winds up to 100 miles per hour (160 km/h) along with four tornadoes. [ 8 ] [ 9 ] [ 10 ]
A derecho is a line of strong thunderstorms that produces frequent wind gusts of at least 58 mph over the span of at least 400 miles. During particularly dangerous derechos, wind gusts can exceed ...