California is gearing up for a stormy stretch as back-to-back atmospheric rivers sweep across the state. These systems will bring rain, gusty winds, and mountain snow—creating challenging conditions for holiday travelers.
While the weekend ahead looks wet for much of Northern California, Southern California will stay mostly dry until Christmas week, when a new storm system threatens to disrupt plans.
The Climate Prediction Center warns that flooding, landslides, and power outages are possible, especially in areas recently burned by wildfires. Travelers should prepare for slick roads, rising creeks, and delays on major routes.
Here’s what to know about the weather this weekend and going into the Christmas week.
Southern California stays mostly dry through Saturday, Dec. 20, with warm temperatures and gusty offshore winds.
Christmas outlook: A developing atmospheric river could bring heavy rain and strong winds on Christmas Eve and Christmas Day, especially across Los Angeles, Ventura, and Santa Barbara counties. Snow is unlikely at resorts, but the likelihood of travel hazards from rain is high.
San Diego will mirror Los Angeles conditions—dry through Saturday, then turning wet around Christmas Eve. Expect gusty winds and localized flooding risks during holiday travel.
Christmas outlook: Rain and wind could complicate coastal drives and airport schedules.
Northern Sacramento Valley is already seeing scattered rain. Widespread rainfall arrived Wednesday, Dec. 17, with heavier amounts over the Sierra and Coastal Range. Into the weekend, expect increased rain coverage and gusty winds. Mountain snow levels start near 8,000 feet, dropping toward 7,000 feet by Monday. Watch for minor urban flooding and fast-moving creeks.
Christmas outlook: Continued unsettled weather with lingering showers and mountain snow.
The San Joaquin Valley faces a different challenge: dense fog combined with rain. Visibility could drop sharply on I-5 and Highway 99, while pooling water on rural roads adds risk.
Christmas outlook: Rain chances increase midweek, with fog remaining a concern for early-morning travelers.
Light rain started on Thursday, with heavier showers expected into Saturday. Sunday could bring intensifying rainfall, gusty winds, and even a slight chance of thunderstorms.
Christmas outlook: Rain remains in the forecast for Christmas Eve and Christmas Day, though intensity may taper compared to the weekend
Holiday travel in California can get tricky when storms roll in. Before you hit the road, take a moment to prepare. These quick safety reminders can help keep you and your family safe during wet, windy conditions:
And here are some online resources you can check out before you hit the road:
The weather service said residents should take these steps to prepare for the heavy rain:
