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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 ...
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 ...
The Weather Underground was a far-left Marxist militant organization first active in 1969, founded on the Ann Arbor campus of the University of Michigan. [2] Originally known as the Weathermen, the group was organized as a faction of Students for a Democratic Society (SDS) national leadership. [3] Officially known as the Weather Underground ...
Those layers –- the default map showing weather stations, radar, precipitation, temperature, infrared satellite, webcams, wind, US fronts, visible satellite, regional temperature, severe weather ...
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 ...
Here's what to expect. A tornado watch has been issued until 7 p.m. Wednesday for more than a dozen counties in northeast Indiana as well as portions of Ohio. The line of developing storms moving ...
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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 ...
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related to: wundermap live weather radarweather.com has been visited by 100K+ users in the past month