California’s holiday travel picture is deteriorating quickly as a Pacific storm system pushes heavy rain, strong winds, and Sierra snow into the state on Tuesday, December 23, 2025.
Newsweek’s live holiday weather tracker flags California as the main trouble spot through Christmas Eve, warning of flash-flooding risk in the Los Angeles Basin and dangerous Sierra travel as the week progresses.
What makes today particularly disruptive is the overlap of (1) low ceilings and marine-layer fog at key coastal airports, and (2) mountain pass conditions that can flip from “open” to chain controls and closures within hours once snow levels and winds intensify.
The timing is especially harsh for travelers,
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