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The National Weather Service confirmed at least 21 tornadoes impacted four states in the central US on December 15, during an unprecedented storm that brought weather warnings to some 100 million ...
An early report from climatologist David Robinson inferred that the storm had traveled 350 miles (560 km) in 5 + 1 ⁄ 2 hours, which would have given it an average speed of 65 mph (105 km/h). [10] Derecho storms are also known for the characteristic bow-like shape of their radar profile [11] The SPC confirmed on the afternoon of June 3 that ...
The derecho emerged into the Atlantic Ocean shortly before 2:00 a.m. EDT (0600 UTC) on June 30, while still producing winds as high as 81 mph (130 km/h) at the coast in Tuckerton, New Jersey and strong and damaging winds on the Delmarva Peninsula. [7]
The derecho maintained vigor as it continued eastward into Louisiana during the evening hours, fueled by continued transport of warm air from the south. [20] Isolated hurricane-force wind gusts were recorded, including an 84 mph (135 km/h) gust at the New Orleans Lakefront Airport .
The deadly event unleashed wind gusts that reached hurricane force for nearly 12 hours, carving a nearly 800-mile path from southwe Deadly derecho affected nearly half of Canada's population ...
An intense thunderstorm complex known as a derecho developed over the central United States on Monday, causing significant damage and widespread power outages as it blitzed eastward covering a ...
The system was unique as surface dewpoints across the impacted region were in the 40s and low 50s, much lower than the typical high 60s and low 70s dewpoints seen during derecho events in the eastern US. [10] Heat wave of 1995 derecho series: July 11–15, 1995: 4 derechos occurred over 4 consecutive nights.
The 2009 Super Derecho was an extreme progressive derecho and mesoscale convective vortex (MCV) event that struck southeastern Kansas, southern Missouri, and southwestern Illinois on May 8, 2009. [ 9 ] [ 10 ] Thirty-nine tornadoes, including two of EF3 strength on the Enhanced Fujita Scale , were reported in addition to high non-tornadic winds ...