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Get the Billings, MT local weather forecast by the hour and the next 10 days.
The Mount Weather Emergency Operations Center saw the first full-scale activation of the facility during the Northeast blackout of 1965. [14] [15] According to a letter to the editor of The Washington Post, after the September 11 attacks, most of the congressional leadership were evacuated to Mount Weather by helicopter. [8] [16] [17]
Get the Helena, MT local weather forecast by the hour and the next 10 days.
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 ...
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.).
Because of problems the heated tipping bucket has with properly measuring frozen precipitation (particularly snow), the all-weather precipitation accumulation gauge (AWPAG) was developed. This sensor is essentially a weighing gauge where precipitation continuously accumulates within the collector, and as the weight increases, precipitation is ...
The U.S. Signal Service, a predecessor to the Weather Bureau, occupied the summit and kept records from 1870 to 1892. Starting in 1932, the current observatory began keeping records. On April 12, 1934, the observatory staff recorded a wind gust of 231 mph [ 1 ] that at the time was the highest recorded wind speed in the world, a record that was ...
Severe weather can occur under a variety of situations, but three characteristics are generally needed: a temperature or moisture boundary, moisture, and (in the event of severe, precipitation-based events) instability in the atmosphere.