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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.
The mountain breezes then generate anabatic winds which also rise. dynamic forcing when air is stable lower down, and circulation is blocked by the mountain, but the air is unstable at higher altitude. In this case general circulation is forced above this blocking layer and can reach the convective layer.
Extreme wind (70 mph or greater) Downpours; Heavy rain; Flood, flash flood, coastal flooding; Hail; High winds – 93 km/h(58 mph) or higher. Lightning; Thundersnow, Snowsquall; Tornado; Windstorm (gradient pressure induced) Severe thunderstorm (hailstorm, downburst: microbursts and macrobursts)
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. ... Wind gusts could ...
"Expect brief, intense bursts of heavy snowfall and gusty winds. Dangerous travel conditions are likely, including whiteout visibility and rapidly worsening road conditions," the weather service said.
Foehn winds are notorious among mountaineers in the Alps, especially those climbing the Eiger, for whom the winds add further difficulty in ascending an already difficult peak. They are also associated with the rapid spread of wildfires , making some regions which experience these winds particularly fire-prone.
In the wake of a weather system expected to bring some rain to the Tri-State, there will be winds high enough for the weather service to issue a wind advisory for 7 a.m. to 4 p.m. Saturday.
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.