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2. 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.

3. Cooperative Observer Program - Wikipedia

   en.wikipedia.org/wiki/Cooperative_Observer_Program

   A Cooperative Observer weather station near Elko, Nevada, featuring a rain gauge, thermometer, and snowboard. Daily observations are reported electronically or over the phone, and monthly logs are submitted electronically or via the mail. Many stations are located in rural areas but the network also includes long-term stations in most urban ...

4. Rain gauge - Wikipedia

   en.wikipedia.org/wiki/Rain_gauge

   The exterior of a tipping bucket rain gauge The interior of a tipping bucket rain gauge. The tipping bucket rain gauge consists of a funnel that collects and channels the precipitation into a small seesaw-like container. After a pre-set amount of precipitation falls, the lever tips, dumping the collected water and sending an electrical signal.

5. 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.).

6. 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 ...

7. List of radar types - Wikipedia

   en.wikipedia.org/wiki/List_of_radar_types

   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 ...

8. Present weather sensor - Wikipedia

   en.wikipedia.org/wiki/Present_weather_sensor

   The present weather sensor (PWS) is a component of an automatic weather station that detects the presence of hydrometeors and determines their type (rain, snow, drizzle, etc.) and intensity. It works on a principle similar to a bistatic radar , noting the passage of droplets, or flakes, between a transmitter and a sensor.

9. Meteorological instrumentation - Wikipedia

   en.wikipedia.org/wiki/Meteorological_instrumentation

   Rain gauges are used to measure the precipitation which falls at any point on the Earth's landmass. Remote sensing, as used in meteorology, is the concept of collecting data from remote weather events and subsequently producing weather information.