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Tropical storm watch TRA – Tropical storm conditions (gale- and storm-force sustained winds of 34 to 63 knots [39 to 72 mph; 63 to 117 km/h]) are possible within the specified coastal or inland area within 48 hours in advance of the forecast onset of tropical-storm-force winds. These winds may be accompanied by storm surge, and coastal and/or ...
Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...
The National Weather Service issued its first-ever blizzard warning for the county, with roads and bridges shuttered by the storm. (12:24 p.m. ET) Texas Transportation Department Deploys Plows To ...
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.
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.).
Weather map; Weather Prediction Center (WPC) Weather radar; Weather satellite; Weather surveillance radar (WSR) Weatherwise – A photographically adorned general interest weather magazine that frequently publishes articles on tornadoes and other severe weather. Wedge tornado – (slang) Storm chaser slang for a very large tornado. Typically a ...
A weather map, also known as synoptic weather chart, displays various meteorological features across a particular area at a particular point in time and has various symbols which all have specific meanings. [1] Such maps have been in use since the mid-19th century and are used for research and weather forecasting purposes.
A mesocyclone is a meso-gamma mesoscale (or storm scale) region of rotation , typically around 2 to 6 mi (3.2 to 9.7 km) in diameter, most often noticed on radar within thunderstorms. In the northern hemisphere it is usually located in the right rear flank (back edge with respect to direction of movement) of a supercell , or often on the ...