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The National Weather Service ( NWS) is an agency of the United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weather-related products to organizations and the public for the purposes of protection, safety, and general information. It is a part of the National Oceanic and ...
The National Weather Service operates 122 weather forecast offices in six regions. [1] [2] Each weather forecast office (WFO or NWSFO) has a geographic area of responsibility, also known as a county warning area , for issuing local public, marine, aviation, fire, and hydrology forecasts.
The National Weather Service Baltimore/Washington is a local office of the National Weather Service responsible for monitoring weather conditions in 44 counties in eastern West Virginia, northern and central Virginia, the majority of the state of Maryland, as well as the city of Washington, D.C. Although labeled as the NWS Baltimore/Washington ...
National Weather Service Chicago, currently based in Romeoville, Illinois, is a weather forecast office responsible for monitoring weather conditions for 23 counties in Northern Illinois, the Chicago metropolitan area and Northwest Indiana. [1] The Army Signal Service established the first federal weather office in the region in Chicago on ...
The Storm Prediction Center ( SPC) is a US government agency that is part of the National Centers for Environmental Prediction (NCEP), operating under the control of the National Weather Service (NWS), [1] which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the United States Department of Commerce (DoC). [2]
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 ...
The National Hurricane Center ( NHC) is the division of the United States' NOAA / National Weather Service responsible for tracking and predicting tropical weather systems between the Prime Meridian and the 140th meridian west poleward to the 30th parallel north in the northeast Pacific Ocean and the 31st parallel north in the northern Atlantic ...
The National Weather Service uses a computer model to figure out what the UV index is. The model calculates how much UV will reach the ground based on the amount of ozone forecasted in the Earth's ...