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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 ...
NEXRAD radar scan of the Little Rock, Arkansas EF3 tornado. As it crossed over the Chenal Parkway, the tornado rapidly intensified to EF3 strength and struck the Calais Forest Apartments, where multiple three-story apartment buildings had roofs and exterior walls ripped off, and some sustained destruction of their top floors.
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 ...
North Little Rock is in charge of weather forecasts, warnings and local statements as well as aviation weather. The name of the Doppler weather radar (WSR-88D) code used by this office is LZK. The National Weather Service at North Little Rock, Arkansas programs 12 NOAA Weather Radio transmitters across Arkansas, with 25 transmitters statewide.
A National Weather Service technician monitors Hurricane Carla on a WSR-57 radar on Sept. 10, 1961. (NOAA) For more than 60 years, Hurricane Carla has been the benchmark for landfalling hurricanes ...
Interstate 440 (Arkansas) Interstate 440 (I-440) and Highway 440 (AR 440), in the central part of the US state of Arkansas, form a partial freeway loop of 14.16 miles (22.79 km) connecting U.S. Highway 67 (US 67), US 167, and I-40 with I-30 and I-530 near Little Rock. I-440, known as the East Belt Freeway during planning and construction ...
On March 24, 2023, a severe weather and tornado outbreak began across portions of the lower Mississippi River Valley in the United States. A slow-moving trough moved eastward across the United States and interacted with a moist and unstable airmass originating from the Gulf of Mexico, resulting in widespread heavy rainfall, severe thunderstorms, and significant tornadoes over a four-day period.
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 ...