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On U.S. NEXRAD radar displays, algorithmically identified mesocyclones, such as by the mesocyclone detection algorithm (MDA), are typically highlighted by a yellow solid circle on the Doppler velocity display; other weather services may have other conventions. [citation needed]
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.).
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Weather radar is a very useful tool to detect the presence of hail-producing thunderstorms. However, radar data has to be complemented by a knowledge of current atmospheric conditions which can allow one to determine if the current atmosphere is conducive to hail development. Modern radar scans many angles around the site.
Hundreds of schools remain closed after winter storm. Widespread school closures were in place Tuesday as snow and ice remained a travel hazard throughout the central and eastern U.S.
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