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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".
The warm and cold flavors of Santa Ana winds are generally rooted in the same dynamics. But cold Santa Ana wind events, Houk said, are driven by mid- and upper-level low pressure and colder air aloft.
"Chinook" is used for coastal Chinook winds in British Columbia, and is the original use of the term, being rooted in the lore of coastal natives and immigrants, and brought to Alberta by French-speaking fur-traders. [1] [9] Such winds are extremely wet and warm and arrive off the western coast of North America from the southwest.
For instance, winds such as the föhn and chinook are rain shadow winds where air driven upslope on the windward side of a mountain range drops its moisture and descends leeward drier and warmer. Examples of true katabatic winds include the bora in the Adriatic , the Bohemian Wind or Böhmwind in the Ore Mountains , the Santa Ana in southern ...
In the last few decades, Santa Ana winds have been associated with several large wildfire clusters, including the 2007 Witch Creek fire, the 2008 Sayre fire and the 2017 Thomas fire, which was the ...
Monday's Santa Ana gusts were but a taste of what's to come later this week, says the National Weather Service, which has issued a Particularly Dangerous Situation Red Flag warning across ...
Santa Ana winds (dry downslope winds that affect coastal Southern California and northern Baja California) Santa Lucia winds (a downslope wind affecting southern San Luis Obispo and northern Santa Barbara Counties, California) [citation needed] Squamish (strong, violent wind occurring in many of the fjords of British Columbia)
Strong winds will howl across parts of Southern California this week that could cause damage and increase the risk for wildfires, following on the heels of a Santa Ana event that took place just ...