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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 .
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 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.
After the initial derecho passed, the warm weather returned to the region, allowing for more atmospheric destabilization and another set of thunderstorms that evening. [6] Around 3:10 p.m. EDT, an outflow -modified cold front formed over south-central Kentucky, northwest Pennsylvania, and central Ohio, carrying the risk of isolated wind gusts ...
This supercell produced five tornadoes over the course of three hours, the first of which was a deadly low-end EF3 tornado near Valley View, Texas, before dissipating. [63] To the north, several supercells formed in northeastern Oklahoma and southern Kansas , while a southeast-propagating mesoscale convective system developed across northern ...
The May 2022 Canadian derecho was a high-impact derecho [5] event that affected the Quebec City-Windsor Corridor, Canada's most densely populated region, on May 21, 2022.. Described by meteorologists as a historic derecho and one of the most impactful thunderstorms in Canadian history, [6] [7] winds up to 190 km/h (120 mph) as well as around four tornadoes caused widespread and extensive ...
As the derecho failed to weaken over the mountains, the moderate risk was expanded eastward by the SPC at 9:00 p.m. EDT (0100 UTC) into the mid-Atlantic region. [10] At 10:10 p.m., the SPC issued the final severe thunderstorm watch for the derecho for all of Delaware , the remainder of Maryland, the remainder of eastern Virginia, southern New ...
[clarification needed] Over two million people lost electrical power, some for up to 10 days. The derecho was the most violent line of thunderstorms observed on earth during the 1998 calendar year according to the National Weather Service review shortly after the year was over. It was the climax of an unusually heavy derecho season in the North ...