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Terminal Doppler Weather Radar, a 5 cm Doppler weather radar design to detect wind shear near major airports in the U.S. and abroad; NEXRAD, a 10 cm radar in the U.S. that detects wind shear, but to a specific extent. (NOAA's National Weather Service) Low level windshear alert system; Atmospheric thermodynamics; Lee waves
Convection causes it to rise, causing a valley breeze. At night, the process is reversed. During the night the slopes get cooled and the dense air descends into the valley as the mountain wind. [4] These breezes occur mostly during calm and clear weather. Mountain and valley breezes are other examples of local winds caused by an area's geography.
On weather maps, the surface position of the cold front is marked by a blue line with triangles pointing in the direction where cold air travels and it is placed at the leading edge of the cooler air mass. [2] Cold fronts often bring rain, and sometimes heavy thunderstorms as well. Cold fronts can produce sharper and more intense changes in ...
Cold weather advisories forecast very cold wind chills – as cold as 12 below zero to 25 below zero – Saturday night to Sunday morning across central New York, northeast Pennsylvania, New ...
Hurricane season: Deadly season ends with at least 335 US deaths Wind chill advisories in Northern US. Thanks to that Arctic outbreak of cold air blasting from the northern Plains into the Midwest ...
In surface weather analysis, cold fronts are symbolized by a blue line with triangles pointing in the direction of travel. cold wave. Also cold spell and cold snap. A period of weather characterized by excessively low temperatures, which may or may not also be accompanied by changes in humidity. Very cold weather is often only referred to as a ...
Cold weather advisories were in effect across portions of New York and Pennsylvania, while freeze warnings and frost advisories were issued for portions of southeast Georgia and north Florida ...
Cold weather advisory NPW – Seasonably cold air temperatures or wind chill values, but not extremely cold values, are expected or occurring. The temperature and wind chill criteria vary significantly over different county warning areas based on climate variability.