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Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin, an unofficial, high-end classification of tornado warning—sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ...
The 2013 El Reno tornado was an extremely large and powerful tornado that occurred over rural areas of Central Oklahoma during the early evening of Friday, May 31, 2013. This rain-wrapped, multiple-vortex tornado was the widest tornado ever recorded and was part of a larger weather system that produced dozens of tornadoes over the preceding days.
Mobile Mesonet. Scientists and technicians from NSSL and the University of Oklahoma built their first Mobile Mesonet (MM) vehicles, a.k.a. “probes,” in 1992. Probes are modified minivans with a suite of weather instruments mounted atop a roof rack and a complex of computer and communication equipment inside.
e. In meteorology, a heat burst is a rare atmospheric phenomenon characterized by a sudden, localized increase in air temperature near the Earth's surface. Heat bursts typically occur during night-time and are associated with decaying thunderstorms. [1] They are also characterized by extremely dry air and are sometimes associated with very ...
Oklahoma Mesonet station recording 108 mph winds from the Idabel tornado. To the northeast of Clarksville, the tornado weakened again as it moved through remote forested areas, producing a large swath of EF3-level tree damage. It then impacted the rural community of Acworth at high-end EF3 strength, debarking trees and destroying multiple ...
The 1999 Bridge Creek–Moore tornado was a large, long-lived and exceptionally powerful F5 tornado in which the highest wind speeds ever measured globally were recorded at 135 metres per second (302 mph; 486 km/h) by a Doppler on Wheels (DOW) radar. Considered the strongest tornado ever recorded to have affected the metropolitan area, the ...
The National Weather Center (NWC), on the campus of the University of Oklahoma, is a confederation of federal, state, and academic organizations that work together to better understand events that take place in Earth's atmosphere over a wide range of time and space scales.
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