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Weather Underground is a commercial weather service providing real-time weather information over the Internet. It provides weather reports for most major cities around the world on its Web site, as well as local weather reports for newspapers and third-party sites. Its information comes from the National Weather Service (NWS), and over 250,000 ...
The Weather Underground was a far-left Marxist militant organization first active in 1969, founded on the Ann Arbor campus of the University of Michigan. [2] Originally known as the Weathermen, the group was organized as a faction of Students for a Democratic Society (SDS) national leadership. [3] Officially known as the Weather Underground ...
Severe thunderstorm warning (SVR) – A severe thunderstorm is indicated by Doppler weather radar or sighted by Skywarn spotters or other persons, such as local law enforcement. A severe thunderstorm contains large damaging hail of 1 inch (2.5 cm) in diameter or larger, and/or damaging winds of 58 mph (93 km/h) or greater.
A storm shelter or storm cellar is a type of underground bunker designed to protect the occupants from violent severe weather, particularly tornadoes. They are most frequently seen in the Midwest ("Tornado Alley") and Southeastern ("Dixie Alley") United States where tornadoes are generally frequent and the low water table permits underground ...
Unknown. In use. 1959–present. The Mount Weather Emergency Operations Center is a government command facility located near Frogtown, Clarke County, Virginia, used as the center of operations for the Federal Emergency Management Agency (FEMA). Also known as the High Point Special Facility ( HPSF ), its preferred designation since 1991 is "SF".
The 2013 El Reno tornado was an extremely large and powerful tornado [a] that occurred over rural areas of Central Oklahoma during the early evening of Friday, May 31, 2013. This rain-wrapped, multiple-vortex tornado was the widest tornado ever recorded and was part of a larger weather system that produced dozens of tornadoes over the preceding ...
The Weather Channel was founded on July 18, 1980, by television meteorologist John Coleman (who had served as a chief meteorologist at ABC owned-and-operated station WLS-TV in Chicago and as a forecaster for Good Morning America) and Frank Batten, then-president of the channel's original owner Landmark Communications (now Landmark Media Enterprises).
The Storm Prediction Center issues daily outlooks denoting the risk for severe weather and wildfires for specific regions in the United States. For severe weather, which includes the risk for thunderstorms, tornadoes, hail, and straight-line winds, there are five risk levels indicating the probability for these hazards: marginal, slight, enhanced, moderate, and high.
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