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  2. 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 ...

  3. Philadelphia, PA Weather - Hourly Forecasts and Local Weather ...

    www.aol.com/weather/forecast/us/philadelphia...

    Get the Philadelphia, PA local weather forecast by the hour and the next 10 days.

  4. 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.).

  5. Philadelphia, PA Weather - Hourly Forecasts and Local Weather ...

    www.aol.com/weather/forecast/united-states/...

    Winter weather forecast: Wetter than average for the Northwest and Great Lakes, NOAA says. NOAA's winter forecast outlook predicts above average precipitation in the Northwest and Great Lakes regions.

  6. Doppler radar - Wikipedia

    en.wikipedia.org/wiki/Doppler_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 ...

  7. Philadelphia, PA Weather - Hourly Forecasts and Local Weather ...

    www.aol.com/weather/forecast/us/philadelphia-2471217

    Dive in and discover how weather impacts daily life, explores the forces of nature, and guides our understanding of the world around us. Get the Philadelphia, PA local weather forecast by the hour ...

  8. Philadelphia, PA Weather - Hourly Forecasts and Local Weather ...

    www.aol.com/weather/forecast/us/philadelphia...

    Get the Philadelphia, PA local weather forecast by the hour and the next 10 days. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in ...

  9. Terminal Doppler Weather Radar - Wikipedia

    en.wikipedia.org/wiki/Terminal_Doppler_Weather_Radar

    Airports with a TDWR in the US. Another in San Juan, Puerto Rico, is not shown on this map.. Terminal Doppler Weather Radar (TDWR) is a Doppler weather radar system with a three-dimensional "pencil beam" used primarily for the detection of hazardous wind shear conditions, precipitation, and winds aloft on and near major airports situated in climates with great exposure to thunderstorms in the ...