A powerful Pacific storm system is expected to bring “life-threatening flooding” and heavy snow to California over the weekend and into early next week. National Weather Service.
A combination of “strong onshore/updrafts” of warm air from the Pacific and cool air can produce thunderstorms and rain of more than 1 inch per hour.
Damaging winds, short-lived tornadoes, and waterspouts According to the National Weather Service in Los Angeles, the coast and valleys of southwestern California are also possible on Sunday.
Heavy rain is expected across much of the state, with 3 to 6 inches on the coast and in the valleys, and 6 to 12 inches in the highlands.
“There is an Extreme Rainfall Risk (level 4/4) for the Latitude Ranges of Southern California both Sunday and Monday as the Pacific system is expected to slow down and allow for a longer period event with near uninterrupted precipitation over the next 48 hours,” – The National Weather Service said, “Moderate Risk (level 3/4) extends along the central Coast Range southward through the LA Basin on Sunday and High Risk along the Peninsular Range southward from the LA Basin on Monday.”
According to the National Weather Service, heavy rain could cause life-threatening fires, river and urban flooding in the area, as well as potential debris flows and mudslides.
The communities most at risk for such impacts in California are those living in or below the hills, particularly those affected by wildfires. California Governor’s Office of Emergency Services.
Cal OES spokeswoman Diana Ibrahim said in an update that residents are encouraged to heed local warnings, avoid walking and driving through debris flows and seek higher ground.
Mandatory evacuations In response to the weather event, orders were issued for parts of Santa Barbara and Ventura counties.
Sandbags available to residents in many locations and shelters Cal OES will open to those in need.
The PGA Tour’s AT&T Pebble Beach Pro-Am at Pebble Beach along the coast was postponed Sunday due to rain and high winds. The Associated Press reported on this. A storm system could cut the tournament short.
Damaging winds up to 95 mph
Winds of up to 95 mph could also affect Northern and Southern California Sunday night, causing downed trees and power outages, according to the NWS.
Wind gusts of 61 miles per hour It has already been reported in San Luis Obispo since Saturday night.
Hurricane force winds are possible in the Gulf region.
“Waters up to 60 nautical miles off the Big Sur Coast have been upgraded to a Hurricane Force Wind Warning for winds of 35 to 55 kt, with gusts up to 80 nautical miles (about 92 mph).” Office of the National Weather Service in the Bay Area he said.
Snow in the Sierra Nevada
Heavy snow will be a major event at higher elevations, especially above 5,000 to 6,000 feet, including the Sierra Nevada and Northern California mountain ranges.
“Several feet of snow is expected for the Sierra by Tuesday morning,” the NWS said. “Heavy snow gusts of 2-3″ per hour combined with gusty winds will lead to whiteout conditions and dangerous, impossible travel conditions.”
Southern California may also see heavy snow at elevations above 7,000.
The system is expected to move north and across the country, bringing “moderate to heavy snow to the Pacific Northwest, Great Basin and Northern Rockies regional mountain ranges over the next several days,” according to the weather service.