12/27/2023 0 Comments So cal lightning stormOfficials tell residents in these areas to seek shelter and public facilities if needed and to not use stoves, grills or ovens to heat homes because of the risk of carbon monoxide poisoning. Wilson for Wednesday through Saturday, with temperatures expected to drop below freezing. The Los Angeles County Department of Public Health on Tuesday issued a cold weather alert for the Antelope Valley, the Santa Clarita Valley and Mt. Whiteout conditions and avalanches are possible in high elevations, which could see up to 7 feet of snow. Rain in coastal and valley areas will increase driving hazards, with chances for flooding in urban areas and in burn scars.ĭowned trees and power poles are another potential hazard. "Dangerous conditions are capable of capsizing boats," the weather service said. Storm gusts, rip currents and high surf are expected. The National Weather Service warned of "very dangerous" marine conditions along the coast. Very strong winds could cause extensive tree damage." On Friday and Saturday, the weather service warned mountain "travel could be very difficult to impossible. The low snow levels could cause significant driving problems, especially on major passes like Interstates 5 and 15, and even Highway 74 through eastern Orange County. Sunday should bring a slight break before the next system, Sweet said, with Monday carrying a chance for more rain and cold temperatures. Temperatures will be 10 to 20 degrees below normal. Such heavy snowfall could damage structures and trees, and carries "an immense threat of avalanches, especially in the eastern San Gabriel Mountains by Saturday," the weather service warned.Ĭoastal and valley areas of Southern California could see 2 to 4 inches of rain between Thursday and Saturday, with rain falling at rates up to 1 inch per hour. Winds could gust up to 75 mph, with near-zero visibility. Friday through Saturday afternoon, when 6 to 12 inches of snow are expected to fall on most mountain passes, and isolated amounts up to 7 feet could fall at the highest elevations, the warning said. A blizzard warning has been issued for some L.A. More inland areas above 2,000 feet in elevation, including the high desert and Santa Ana Mountains, could see a few inches to a few feet of snow by late Thursday, said James Brotherton, a meteorologist with the National Weather Service office in San Diego.Ĭonditions will become more extreme late Thursday and early Friday, when the "cold core" of the storm will be right above Southern California, Sweet said. The Antelope Valley and the Interstate 5 pass through the Grapevine already recorded some snow early Wednesday and are likely to see more, Sweet said - though even lower-elevation snow remains possible. Some areas could see snow at elevations as low as 1,500 feet. "It’s going to be a wild and woolly kind of day - the lightning, the thunder, the hail, the graupel," he said, referring to a type of frozen crystal that can look like snowflakes. Though the snow will be most concentrated in the mountains, Sweet said, heavy precipitation and winds will span the region, especially Saturday when the "cold core" of the storm will center on Los Angeles. The event is expected to be “a snowmaker of the likes we have not seen for many years,” said Andrew Rorke, senior forecaster with the National Weather Service office in Oxnard. Officials are still trying to build an accurate forecast, but snow has already started to fall in the Antelope Valley and along the Grapevine, and forecasters are warning of the possibility of severe and dangerous conditions that could last through Sunday. “Between late Thursday and early Saturday, we’re looking at a storm delivering more snow than any other snow in recent decades," Sweet said.
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