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NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...
Doppler Radar stationed in Lawrenceburg, Tennessee Tennessee Valley Weather employs a wide array of technology, including Baron Services Lynx, a Furuno WR2120 Dual Polarimetric Doppler weather radar , [ 9 ] [ 10 ] for which it founded the non-profit Tennessee Valley Weather Radar Foundation, [ 11 ] and a network of weather sensors and cameras.
The station's weather coverage utilized its first live doppler radar in 1958. [32] On April 16, 1998, WTVF was knocked off the air due to an F3 tornado striking downtown Nashville. This occurred while meteorologists Ron Howes and Joe Case were broadcasting live, showing the actual tornado from the station's SkyCam as it entered downtown Nashville.
WAFF's "First Alert Doppler Radar" (formerly "Live Stormtracker Doppler"), which was located in Limestone County just off of US 72, was destroyed when it was hit by a large and violent tornado (which produced EF5 damage in nearby Tanner, approximately 10 miles (16 km) away from the radar site) on April 27, 2011. A camera mounted on the tower ...
Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...
Southern, Midwestern, & Eastern United States. Part of the Tornadoes of 2011. The 2011 Super Outbreak was the largest, costliest, and one of the deadliest tornado outbreaks ever recorded, taking place in the Southern, Midwestern, and Northeastern United States from April 25 to 28, 2011, leaving catastrophic destruction in its wake. [7][8][9][10 ...
The 2010 Tennessee floods were floods in Middle Tennessee, West Tennessee, south-central and western Kentucky and northern Mississippi areas of the United States of America as the result of torrential rains on May 1 and 2, 2010. Floods from these rains affected the area for several days afterwards, resulting in a number of deaths and widespread ...
A pulse-Doppler radar is a radar system that determines the range to a target using pulse-timing techniques, and uses the Doppler effect of the returned signal to determine the target object's velocity. It combines the features of pulse radars and continuous-wave radars, which were formerly separate due to the complexity of the electronics.