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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 ...
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.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the ...
On a weather radar Doppler display, a downburst is seen as a couplet of radial winds in the outburst and cushion stages. The rightmost image shows such a display from the ARMOR Doppler Weather Radar in Huntsville, Alabama, in 2012. The radar is on the right side of the image and the downburst is along the line separating the velocity towards ...
According to AAA, the national average for a gallon of gasoline has fallen four cents since last week, to $3.60. The primary reasons are weak domestic demand and oil costs below $80 a barrel ...
Some may be bracing for bad weather that could lead to travel headaches, though everyone is certainly hoping to avoid a catastrophe like last year's Southwest Airlines meltdown in which 17,000 ...
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 Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. [ 1] It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal.
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related to: aaa travel weather conditions forecast radar in motionweather.com has been visited by 100K+ users in the past month