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Robert "Bob" Richards (January 10, 1956 – March 23, 1994), born Robert L. Schwartz, was an American local television personality on KSDK in St. Louis, Missouri, where he worked as chief meteorologist in the 1980s and early 1990s. He began his career as a meteorologist at WOLO-TV in Columbia, South Carolina; WATE-TV in Knoxville, Tennessee ...
The station first signed on the air on July 8, 1954, as KWK-TV. At its launch, channel 4 was owned by a consortium which included Robert T. Convey (28%) and the now-defunct Newhouse Newspapers–published St. Louis Globe-Democrat (23%), who jointly operated KWK radio (1380 AM, now KXFN); Elzey M. Roberts Sr., former owner of KXOK radio (630 AM, frequency now occupied by KYFI), which had to be ...
Cindy Preszler. Cindy Preszler is an on-air meteorologist with CBS-owned WFOR-TV in Miami, Florida. She was previously with WFTX-TV, [1] in Fort Myers, Florida, and WeatherSTL.com, [2] a dynamic, interactive site she created and owned that delivered up-to-date weather information for the Greater St. Louis metro area, from 2016 through January ...
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.).
The frequency selection of weather radar is a performance compromise between precipitation reflectivity and attenuation due to atmospheric water vapor. Some weather radars uses doppler shift to measure wind speeds and dual-polarization for identification of types of precipitations. [3] [4] Weather radar; Wind profilers; Millimetre cloud radar ...
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 ...
A NEXRAD weather radar currently used by the National Weather Service (NWS) is a 10 cm wavelength (2700-3000 MHz) radar capable of a complete scan every 4.5 to 10 minutes, depending on the number of angles scanned, and depending on whether or not MESO-SAILS is active, which adds a supplemental low-level scan while completing a volume scan. Its ...
Weather Underground is a commercial weather service providing real-time weather information over the Internet. It provides weather reports for most major cities around the world on its Web site, as well as local weather reports for newspapers and third-party sites. Its information comes from the National Weather Service (NWS), and over 250,000 ...