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  2. Chicago, IL Weather - Hourly Forecasts and Local Weather ...

    www.aol.com/.../chicago/chicago-2379574

    Fox Weather 56 minutes ago Winter storm live tracker: Snowfall maps, current alerts, weather warnings, ice forecasts, power outages. A major winter storm is sweeping across much of the nation's ...

  3. Weather radar - Wikipedia

    en.wikipedia.org/wiki/Weather_radar

    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.).

  4. NEXRAD - Wikipedia

    en.wikipedia.org/wiki/NEXRAD

    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 ...

  5. Terminal Doppler Weather Radar - Wikipedia

    en.wikipedia.org/wiki/Terminal_Doppler_Weather_Radar

    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 [7] is active, which adds a supplemental low-level scan while completing a volume scan ...

  6. List of catastrophic collapses of broadcast masts and towers

    en.wikipedia.org/wiki/List_of_catastrophic...

    Also damaged transmitter building and doppler radar. [24] WVIA-TV Tower, Penobscot Knob: December 16, 2007: Guyed steel lattice mast 510 Ice: 300 ft. section lost from top of tower [25] KATV-TV Tower, Redfield, Jefferson County, US January 11, 2008: Guyed steel lattice mast 609 Maintenance Restringing guy wires [26]

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  8. First-ever tornado warning shocks San Francisco residents ...

    www.aol.com/first-ever-tornado-warning-shocks...

    The National Weather Service issued the warning for northern San Mateo County and parts of downtown San Francisco, just before 6 a.m. until 6:15 a.m. ... "The radar scan at 5:52am clearly shows a ...

  9. National Weather Service Chicago, Illinois - Wikipedia

    en.wikipedia.org/wiki/National_Weather_Service...

    During May 1894 the Chicago Weather Bureau was given a new forecast area extending from the Great Lakes region all the way to the Rocky Mountains. [2] The current National Weather Service Chicago is located in Romeoville and is in charge of issuing local forecasts and weather warnings for the Chicago area . [ 2 ]