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

    www.aol.com/weather/forecast/us/chicago-12784292

    Get the Chicago, IL local weather forecast by the hour and the next 10 days. ... Winter Storm Live Tracker: Snowfall maps, current alerts, weather warnings, ice forecasts, power outages.

  3. How hot will it be in Illinois this summer? Here's what the ...

    www.aol.com/hot-illinois-summer-heres-climate...

    As for what a typical summer weather day is in Illinois, the University of Illinois state climatologist office says highs are usually in the 80s with lows in the 60s. Days above 90 degrees are ...

  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. Weather Underground (weather service) - Wikipedia

    en.wikipedia.org/wiki/Weather_Underground...

    Weather Underground uses observations from over 250,000 personal weather stations worldwide. [21] The Weather Underground's WunderMap overlays weather data from personal weather stations and official National Weather Service stations on a Mapbox Map base and provides many interactive and dynamically updated weather and environmental layers. [22]

  6. National Weather Service Chicago, Illinois - Wikipedia

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

    National Weather Service Chicago, currently based in Romeoville, Illinois, at Lewis University, is a weather forecast office responsible for monitoring weather conditions for 23 counties in Northern Illinois, the Chicago metropolitan area and Northwest Indiana. [1]

  7. WSR-74 - Wikipedia

    en.wikipedia.org/wiki/WSR-74

    128 [6] of the WSR-57 and WSR-74 model radars were spread across the country as the National Weather Service's radar network until the 1990s. They were gradually replaced by the WSR-88D model (Weather Surveillance Radar - 1988, Doppler), constituting the NEXRAD network. The WSR-74 had served the NWS for two decades.

  8. Weather map - Wikipedia

    en.wikipedia.org/wiki/Weather_map

    A weather map, also known as synoptic weather chart, displays various meteorological features across a particular area at a particular point in time and has various symbols which all have specific meanings. [1] Such maps have been in use since the mid-19th century and are used for research and weather forecasting purposes.

  9. 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 ...