California Weather Latest: When Is the Next Snowstorm Coming? Pacific Storms Bringing Flooding and Mudslides

Storms coming in from the Pacific will hammer California with heavy rain and snow over the coming week. This will lead to evacuation warnings in some areas affected by recent wildfires because of the threat of deadly debris flows.

"A very active weather pattern will be in place across California and then the Intermountain West through the middle of the workweek," says Tuesday's forecast from the National Weather Service.

"A deep Pacific trough off the West Coast will remain in place over the next few days with a frontal boundary approaching central California Tuesday evening, and a much stronger storm arrives Wednesday night." the forecast continued. "The result will be widespread rain with enhanced rainfall for the coastal mountain ranges, and [the Weather Prediction Center] has a moderate risk of flash flooding across the mountainous terrain near Los Angeles for Tuesday.

"Heavy snow will fall across the Sierra Nevada and Siskiyou mountains of California, with amounts exceeding a foot at the highest elevations."

Related: It will take "years" to rebuild communities devastated by the Camp Fire

The National Weather Service's Los Angeles office told California residents to expect significant travel delays, mudslides and debris flows in recently burned areas, and the flooding of roads, small streams and creeks.

Further north in California, the National Weather Service's Sacramento station warned residents of snow, heavy rain and gusts of up to 45 mph affecting local areas from Wednesday through Thursday.

"Significant impacts such as hazardous mountain travel, possible power outages & localized flooding are possible. Prepare now!" the Sacramento office tweeted.

Meanwhile, the California Department of Forestry and Fire Protection suggested that Riverside County residents in several zones under its watch should evacuate their homes immediately. The homes are located in areas burned by the Holy Fire in August.

"People in these zones SHOULD GO NOW," Cal Fire Riverside said in a release issued on Monday evening.

"Rainstorms carry the potential for dangerous debris flows that can send mud, boulders and trees crashing down hillsides.... Because debris flows can happen with little to no warning, emergency officials might only be able to provide residents a few minutes' notice, or none at all. As always, residents are urged to remain vigilant and take personal responsibility for their safety."

Los Angeles fire officials ordered the mandatory evacuation of homes in some of the areas burned by the Woolsey Fire back in November because of the high risk of mud and debris flows.

According to CNN, flash flood watches are in place for parts of Orange, San Bernardino, Riverside and San Diego counties.