California officials are urging holiday travelers to avoid the roads on Christmas Eve and Christmas Day. A series of powerful winter storms is expected to douse California with relentless rain, heavy winds, and snow this week. Much of the state will see heavy rains and gusts that could lead to flooding, mudslides and rock slides. The Sacramento Valley and San Francisco Bay Area are under flood and high wind warnings through Friday. The Sierra Nevada will see heavy snow and strong winds, making travel nearly impossible. Southern California could see its wettest Christmas in years and warned about mudslides and debris flows. Some 380 particularly vulnerable households were ordered to leave.
A series of powerful winter storms is expected to douse California with relentless rain, heavy winds, and snow this Christmas week. The National Weather Service warns of hazardous travel conditions for the millions of people expected to leave home. Much of the state will see heavy rains and gusty wind that could lead to flooding, mudslides and rockslides. The Sacramento Valley and San Francisco Bay Area are under flood and high wind warnings through Friday. The Sierra Nevada will see heavy snow and strong winds, making travel nearly impossible. Southern California expects severe storms. Officials urge people to stay home.
Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky. They carry moisture from the tropics to northern and southern latitudes, and can dump heavy rains or snow over land. According to the National Oceanic and Atmospheric Administration, they occur globally but are especially significant on the West Coast of the United States, where they create 30% to 50% of annual precipitation and are vital to water supplies but also can cause storms that produce flooding and mudslides.
By NOAH BERGER and TRÂN NGUYỄN Associated Press
Heavy rain and flash flooding have soaked roads in northern California, leading to water rescues and at least one confirmed death. Authorities say police in the city of Redding received numerous calls Sunday from stranded motorists who tried to drive through flooded areas. According to Mayor Mike Littau on Monday, one person died who was pulled out of a vehicle that was flooding. The National Weather Service expects more rain through the Christmas week and warns of potentially flooding, mudslides and rockslides. The flooding in California comes after stubborn atmospheric rivers drenched Washington state earlier this month.
By GODOFREDO VASQUEZ, JANIE HAR and CHRISTOPHER WEBER Associated Press
A major storm moving through Northern California toppled trees and dropped heavy snow and record amounts of rain after knocking out power to hundreds of thousands of people in Washington and Oregon. Forecasters warn the risk of flash flooding and rock slides would continue through Friday. The weather service has extended a flood watch for areas north of San Francisco as a plume of moisture known as an atmospheric river inundates Northern California and the Pacific Northwest. Up to 16 inches of rain is forecast in Northern California and southwestern Oregon. The storm system unleashed winds earlier this week that left two people dead and hundreds of thousands without power in Washington state.
