As a deep plume of moisture makes its way inland across the West Coast, a multitude of hazards could arise this week, ranging from localized flooding and severe thunderstorms to feet of snow in the mountains and gusty winds.

As people travel for the holiday weekend, much of Northern California is under a winter storm watch, with communities bracing for several feet of snow.

Los Angeles city officials issued an evacuation warning Saturday for several wildfire burn areas ahead of an incoming storm expected to bring heavy rain to Southern California early next week. The

Southern California will see a mild weekend before three cold storm systems bring heavy rain and dropping snow levels starting on Monday.

The National Weather Service has issued a Winter Storm Warning for several Southern California mountain areas as a powerful storm system approaches the region this week. The warning covers the Eastern San Gabriel Mountains and Northern Ventura County Mountains from 6 a.

A massive storm aimed at California may help the state, which has been struggling with a snow drought through much of the winter.

The National Weather Service office in Los Angeles is putting people on alert for a “very significant and dangerous" storm that has the potential for flash flooding and possible tornadoes early this week.

A frigid storm will sweep across California, lowering snow levels and creating dangerous Sierra and mountain travel conditions. Tahoe and Big Bear travel could turn treacherous by Monday.