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A Short-Term Forecast NOW (alt., NOWcast) is an event-driven narrative outlook of near-term weather conditions within the Weather Forecast Office’s area of responsibility, typically valid for a three- to seven-hour period. The product outlines any ongoing or recently occurring conditions—based on radar analysis, satellite imagery and other ...
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.).
Radar image animation of an outflow boundary of a storm approaching Tulsa, Oklahoma. The outflow boundary's weak echo moves left-to-right and passes overhead of the Doppler radar station. The outflow produces a gust front that moves ahead of the main thunderstorm. Outflow, in meteorology, is air that flows outwards from a storm system.
Dropsonde delivery system on a NOAA P-3 Hurricane Hunter. A dropsonde is an expendable weather reconnaissance device created by the National Center for Atmospheric Research (NCAR), designed to be dropped from an aircraft at altitude over water to measure (and therefore track) storm conditions as the device falls to the surface.
Temperatures will drop again on Wednesday for many areas outside the Midwest. Wednesday is likely to be the coolest day since spring for millions, and in many locations, it’ll feel more like ...
Yellow weather warnings for snow and ice remain in place across Scotland as millions return to work after the festive break. The central belt, south and north east are all under two separate ...
Outflow boundary on radar with radial velocity and frontal boundary drawn in.. An outflow boundary, also known as a gust front, is a storm-scale or mesoscale boundary separating thunderstorm-cooled air from the surrounding air; similar in effect to a cold front, with passage marked by a wind shift and usually a drop in temperature and a related pressure jump.
The storm caused chaos as it dumped several inches of snow across a 1,300-mile path from the heartland since Saturday, causing deadly traffic accidents, knocking out power and canceling flights.