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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]
Map of regions covered by the 122 Weather Forecast Offices. The National Weather Service operates 122 weather forecast offices. [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.
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 ...
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.).
The U.S. Weather Bureau first began broadcasting marine weather information in Chicago and New York City on two VHF radio stations in 1960 as an experiment. [1] [2] Proving to be successful, the broadcasts expanded to serve the general public in coastal regions in the 1960s and early 1970s. [3]
State Route 99 (SR 99) is a major north–south state highway in the U.S. state of California, stretching almost the entire length of the Central Valley.From its southern end at Interstate 5 (I-5) near Wheeler Ridge to its northern end at SR 36 near Red Bluff, SR 99 goes through the densely populated eastern parts of the valley.
The highway is then downgraded to a four-lane expressway, turning north again, downgraded further to a two-lane highway, until it meets up with its original alignment just north of the community of Sheridan. After passing through Wheatland, it assumes its freeway designation a few miles north of the town, ending at State Route 70 in Olivehurst.
State Route 263 (SR 263) is a state highway in the U.S. state of California in Siskiyou County, running parallel to Interstate 5 to the west. Route 263 connects State Route 3 near the north city limits of Yreka to State Route 96 eight miles (13 km) north. Although SR 263 was once part of U.S. Route 99, it is not signed as part Business Loop 5