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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.
The Storm Prediction Center's Day 1 convective outlook for May 21, 2024, issued at 1300Z, indicating a moderate risk for severe weather over much of Iowa and nearby parts of Wisconsin, Illinois, Missouri, and southeastern Minnesota. May 19
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 ...
Weather radar, also called weather surveillance radar ( WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the ...
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 ...
KMOV (channel 4) is a television station in St. Louis, Missouri, United States, affiliated with CBS. It is owned by Gray Television alongside low-power station KDTL-LD (channel 4.6). The two stations share studios on Progress Parkway in suburban Maryland Heights ; KMOV's transmitter is located in Lemay, Missouri .
The 2011 Super Outbreak was the largest tornado outbreak spawned by a single weather system in recorded history; it produced 360 tornadoes from April 25–28, with 216 of those in a single 24-hour period on April 27 from midnight to midnight CDT, fifteen of which were violent EF4–EF5 tornadoes. 348 deaths occurred in that outbreak, of which 324 were tornado related.
The Super Dual Auroral Radar Network ( SuperDARN) is an international scientific radar network [1] [2] consisting of 35 [3] high frequency (HF) radars located in both the Northern and Southern Hemispheres. SuperDARN radars are primarily used to map high-latitude plasma convection in the F region of the ionosphere, but the radars are also used ...