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The Santa Anas are katabatic winds (Greek for "flowing downhill") arising in higher altitudes and blowing down towards sea level. [7] The National Weather Service defines Santa Ana winds as "a weather condition [in southern California] in which strong, hot, dust-bearing winds descend to the Pacific Coast around Los Angeles from inland desert regions".
Here are some of the highest wind speeds recorded early Tuesday across Los Angeles and Ventura counties, according to the National Weather Service office in L.A. Magic Mountain Truck Trail – 72 ...
A strong Santa Ana wind event is setting up across Southern California. A rare Particularly Dangerous Situation (PDS) alert has been issued for Los Angeles and Ventura counties.
Santa Ana winds will increase into early Tuesday, bringing the threat of damaging winds gusting from 60 to 80 miles per hour across the prone mountain regions surrounding Los Angeles.Spanning from ...
The Diablo wind is created by the combination of strong inland high pressure at the surface, strongly sinking air aloft, and lower pressure off the California coast. The air descending from aloft as well as from the Coast Ranges compresses as it sinks to sea level where it warms as much as 20 °F (11 °C), and loses relative humidity. [4]
As strong winds in Southern California pick up further early on Tuesday, a "particularly dangerous situation" with a red flag warning will go into effect in western Los Angeles County and most of ...
The storms caused record-breaking rainfall totals to be observed in multiple areas, as well as the declaration of states of emergency in multiple counties in Southern California. [3] [4] Wind gusts of hurricane force were observed in San Francisco, along with wind gusts reaching over 100 miles per hour (160 km/h) in the Sierra Nevada.
The timing of this Santa Ana Wind Event is similar to the Thomas Fire, which burned over 280,000 acres from December 2017 to January 2018 and is the ninth-largest wildfire in California history.