California is bracing for the arrival of a new, more powerful Pacific storm following a weekend of scattered rain, showers and snow.
The National Weather Service says a low-pressure system off the coast will draw a plume of subtropical moisture northward into the state beginning Tuesday.
Forecasters say the rainfall is expected to be widespread and heavy at times, raising the possibility of mud and debris flows from slopes scarred by wildfires.
Heavy snow is forecast for the Sierra Nevada while the Central Valley can expect gusty winds and thunderstorms.
The stormy weather on Sunday showed just how unstable some fire-scarred areas can be. Pacific Coast Highway west of Malibu was blocked by mudflow from a section of the Santa Monica Mountains where more than 40 square miles burned last year.