California weather: Storm could include rain, snow, wind, mudslides - USA TODAY

PALM SPRINGS, Calif. — Hundreds of thousands of Californians were without powerfulness Sunday amid precocious winds and dense rains, the latest in an unrelenting wave of brutal storms that could supply its worst deed yet connected Monday when a "firehose of moisture" was forecast to slam the sodden state.

More than fractional of Sacramento's 530,000 residents were successful the acheronian astatine the tallness of the tempest Sunday, victimized by upwind gusts of up to 60 mph that toppled trees and tangled powerfulness lines, the Sacramento Municipal Utility District said.

"Atmospheric stream events" will continue to batter California done aboriginal this week with apt the astir potent strategy arriving Monday, the National Weather Service said. Additional rainfall connected saturated soils volition pb to sizeable flooding, mudslides and pain scar debris flows, the upwind work said.

Widespread upland snowfall and precocious winds volition adhd to upwind issues crossed the state, the connection warned.

"This could beryllium a deadly concern and the tempest volition apt beryllium a billion-dollar disaster," tweeted AccuWeather meteorologist Ariella Scalese. "Several much inches of rain, mudslides/landslides. In addition, feet of snowfall supra 6,500 feet and upwind gusts exceeding 100 mph."

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Latest developments:

• More than 360,000 homes and businesses crossed California were without power Sunday.
• Evacuation warnings were successful spot for astir 13,000 residents of Sonoma County northbound of San Francisco, wherever the Russian River was expected to clang implicit its banks successful the coming days.
• The authorities Department of Transportation warned motorists to enactment disconnected upland roads aft closing a agelong of U.S. 395 successful Mono County owed to dense snow, crystal and whiteout conditions on the Eastern Sierra.
• The National Weather Service issued a flood ticker for a swath of Northern and Central California.
• The storms won’t beryllium capable to officially extremity California’s ongoing drought but they person helped, Anderson said.

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Weather services warns of damaging winds, further powerfulness outages

The upwind work warned that damaging winds volition instrumentality Sunday nighttime crossed Northern California.

High upwind warnings were issued by the upwind work starting Sunday nighttime and is expected to past until Monday.

"This volition origin further downed trees and wide powerfulness outages, particularly with soils truthful saturated," the upwind work successful Sacramento tweeted. 

The authorities superior is inactive recovering from damaging winds aft much than 230,000 customers were near successful the acheronian aboriginal Sunday aft wind gusts topping 60 mph knocked trees into powerfulness lines, according to the Sacramento Municipal Utility District. By Sunday afternoon, astir 680 customers successful Sacramento were inactive without power, according to the SMUD power outage map.

How overmuch rainfall and snowfall volition fall?

State climatologist Michael Anderson said officials were intimately monitoring Monday’s incoming tempest and different down it and were keeping an oculus connected 3 different systems farther retired successful the Pacific. Parts of Northern and Central California could spot 6 to 12 inches of rainfall done Wednesday, the upwind work said. 

AccuWeather says an further 4-8 inches of rainfall could fall connected galore of the coastal ranges, arsenic good arsenic the foothills of the Sierra Nevada. Isolated areas could get up to 14 inches, AccuWeather said. Monday's tempest is expected to bring dense Sierra snow, beardown winds and a substance of heavy, bedewed snowfall and low-elevation flooding concerns into Tuesday, the upwind work said.

San Francisco was forecast to see 2-4 much inches of rain. In the past 2 weeks, the downtown country has seen much than 11 inches of rainfall – six times much than normal  for that clip period. During this stretch, the metropolis recorded its wettest 10-day play successful much than 150 years.

Heavy rainfall volition instrumentality to portions of Southern California Monday nighttime and Tuesday, with 1-2 inches of rainfall successful the Los Angeles area and locally higher amounts, AccuWeather said.

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Why could this tempest beryllium truthful damaging?

AccuWeather experts accidental the preceding conditions are what could catapult the coming tempest damages to "extreme and historical levels." Those conditions includes torrential rains Sunday – 1 thunderstorm moving into the Sacramento portion was producing up to a half-inch of rainfall per hour. Localized flooding, gusty winds and lightning were successful the forecast. 

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The "relentless parade of atmospheric rivers" that have hit the authorities implicit the past weeks person bloated rivers and saturated the ground. Mammoth Mountain, an Eastern Sierra skis resort, received astir 10 feet of snow, the National Weather Service reported.

The fronts person been blamed for at slightest six deaths, authorities say.

Contributing: The Associated Press