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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.
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 Hackleburg–Phil Campbell tornado was a large, long-lived, and devastating EF5 tornado that impacted several towns in rural northern Alabama before tearing through the northern suburbs of Huntsville and causing damage in rural portions of southern Tennessee on the afternoon and early evening of April 27, 2011.
It is one of the costliest tornadoes on record, and was one of the 367 tornadoes in the 2011 Super Outbreak, the largest tornado outbreak in United States history. The tornado reached a maximum path width of 1.5 miles (2.4 km) during its track through Tuscaloosa, and again when it crossed I-65 north of Birmingham, attaining estimated wind ...
This radar was used to scan and film the complete life cycle of a tornado in 1973. By comparing the film with velocity images from the radar, the researchers found a pattern that showed the tornado beginning to form before it could be visually detected on the film. The researchers named this phenomenon the Tornado Vortex Signature (TVS). [3]
Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. 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.).
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 ...
Radar tracker. A radar tracker is a component of a radar system, or an associated command and control (C2) system, that associates consecutive radar observations of the same target into tracks. It is particularly useful when the radar system is reporting data from several different targets or when it is necessary to combine the data from ...