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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 first Weather Bureau radiosonde was launched in Massachusetts in 1937, which prompted a switch from routine aircraft observation to radiosondes within two years. The Bureau prohibited the word "tornado" from being used in any of its weather products out of concern for inciting panic (a move contradicted in its intentions by the high death tolls in past tornado outbreaks due to the lack of ...
AccuWeather, Inc. is a private-sector American media company that provides commercial weather forecasting services. AccuWeather was founded in 1962 by Joel N. Myers, then a Pennsylvania State University graduate student working on a master's degree in meteorology. His first customer was a gas company in Pennsylvania. While running his company ...
Weather map of Europe, December 10, 1887. A storm in October 1859 that caused the loss of the Royal Charter inspired FitzRoy to develop charts to allow predictions to be made, which he called "forecasting the weather", thus coining the term "weather forecast". [17]
The 1957 Dallas tornado was also studied extensively by the Severe Weather Forecast Unit in Kansas City, who proved several prominent theories about tornadoes were wrong. One of these-then proven false theories was that all air and debris flowed inward into the funnel and then upward, but on the outside edges of the funnel debris and people ...
The National Weather Service in Birmingham, Alabama, noted the rating for this tornado was F4 on the Fujita scale, which has a wind speed range of 207 to 260 miles per hour (333 to 418 km/h). However, the wind speeds assigned to this tornado was between 210 and 261 miles per hour (338 and 420 km/h), indicating the potential that this tornado ...
The borough also has active Activity and Historical Committees. The goal of the Activity Committee is to plan and support various community activities to promote a sense of vitality in the community. Accordingly, Community Day was started in 2009 to promote the businesses and non-profit organizations in Schwenksville with a fun community event.
Once again, a moderate risk of severe weather was issued on May 23—this time for the southern Plains and the lower Great Lakes.Forecasts showed that the main threats would be damaging wind and large hail instead of frequent tornadoes; the stationary front lacked the necessary wind shear to sustain the type of tornadic supercells seen on May 22.
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