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An anabatic wind, from the Greek anabatos, verbal of anabainein meaning "moving upward", is a warm wind which blows up a steep slope or mountain side, driven by heating of the slope through insolation. [1] [2] It is also known as upslope flow. These winds typically occur during the daytime in calm sunny weather.
Diurnal wind system variation in the Appalachian mountain range. Mountain and valley breezes form through a process similar to sea and land breezes. During the day, the sun heats up mountain air rapidly while the valley remains relatively cooler. Convection causes it to rise, causing a valley breeze. At night, the process is reversed.
Cloud. Cumulonimbus cloud; Arcus cloud; Downburst. Microburst; Heat burst; Derecho; Lightning. Volcanic lightning; Thunderstorm. Air-mass thunderstorm; Thundersnow
The NWS has issued a "Particularly Dangerous Situation" (PDS) Fire Weather Warning for much of the Santa Ana wind corridor of Los Angeles and Ventura counties through Tuesday. The PDS Warning ...
Cold air on its own can be dangerous if a person isn't dressed for the weather, but high winds, which lead to wind chill, pose a significant risk, the National Weather Service said.
The National Weather Service reported wind speeds, with gusts up to 80 mph, were expected into Tuesday afternoon. Winds were expected to start to taper off later in the day, but conditions could ...
In a more general case, several effects may be present and if the synoptic wind is opposed to the anabatic wind, additional convergence occurs at the top of the mountain. [3] It is also possible to create a convergence zone behind the mountain when the synoptic wind can divide and go around it to meet again (ex. Puget Sound Convergence Zone ...
Red flag warnings are in place for Southern California due to Santa Ana winds that will bring gusts up to 65 mph and “extremely rare and dangerous” fire weather conditions. Red flag warnings ...