By AccuWeather senior meteorologist
Published Nov. 23, 2022 11:29 AM EST | Updated Nov. 24, 2022 3:55 AM EST
A fresh round of Santa Ana winds in Southern California will renew the threat of wind damage and wildfires, according to AccuWeather forecasters.
The threat comes just days after the first Santa Ana events of the season in the region when wind gusts topped 100 mph.
Since the strong winds are expected around Thanksgiving -- they will ramp up Wednesday evening and continue into early Friday -- travel for the holiday could be impacted, as well as outdoor events, such as parades or football games.
The winds will be driven by an area of high pressure building into the Great Basin, forcing winds offshore in Southern California. As the winds move into the lower elevations, they will intensify and warm, increasing the hazards to both motorists and property.
"The winds can bring down trees and power lines and cause difficult driving conditions, especially for higher-profile vehicles," said AccuWeather Senior Meteorologist John Gresiak.
Wind gusts of 40 to 60 mph will be common in the favored Santa Ana areas of Southern California, with gusts as high as 85 mph possible. The strongest winds will occur on Thanksgiving Day.
Compared to last week, this event will be a moderate one, with the strongest gusts expected to remain in the higher terrain and below canyons and passes.
"The combination of strong winds and dry air will also increase the fire danger," Gresiak added.
Some of the most damaging fires in California history have come during and in the wake of offshore wind events in the late summer and autumn months, including during Santa Ana events. Despite some rain earlier this month, dry areas and fuels for wildfires remain, including in the form of dead brush and leaves. According to the U.S. Drought Monitor, over 40 percent of the state remains in a state of extreme drought as of Tuesday.
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"There has been no rain since the last Santa Ana events last week, so fuels have continued to dry out," said AccuWeather Senior Meteorologist Heather Zehr.
The event will generally begin to wind down by Thursday night, but not for everyone.
"Winds should begin to diminish Thursday evening, but some stronger wind gusts can linger into Friday morning, especially over the southern ranges," added Zehr. Those southern ranges are the mountains in San Bernardino and San Diego counties.
Tall palm trees sway in the wind early on Wednesday, Nov. 16, 2022, in the San Fernando Valley section of Los Angeles. (AP Photo/Richard Vogel)
The expectation that lighter winds will return on Friday is good news for many, as Friday is a traditionally busy day for holiday shopping.
AccuWeather meteorologists say a large, chilly storm arriving in the Pacific Northwest over the weekend could move south through California and bring some rain and mountain snow to Southern California next week.
Another storm system could follow in the mid- to late-week period. While precipitation amounts may not be significant, any rainfall will reduce the threat of wildfires when the next Santa Ana event occurs.
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