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Isolated tornadoes are possible but not expected to be the dominant severe weather event, hence these watches are very rarely issued. An expected severe wind event is the mostly likely reason for a PDS severe thunderstorm watch to be issued, with widespread winds greater than 90 mph (150 km/h or 80 knots) possible. These watches are usually ...
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 ...
Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. [1] On Earth, most weather phenomena occur in the lowest layer of the planet's atmosphere, the troposphere, [2] [3] just below the stratosphere.
However, the National Weather Service at Wilmington's records show the lowest wind chill value ever recorded was -48 degrees at Cincinnati/ Northern Kentucky International Airport in 1985. Those ...
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.
But that dry spell looks set to end — and not with a whimper. Northern California is primed to get two atmospheric river storms, according to Courtney Carpenter, a meteorologist with the weather ...
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