A severe storm making its way into Southern California has triggered concerns of mud and debris flows in areas hit by the ...

Tuesday morning was a cold start for commuters as temperatures across the Sacramento Valley reached below-freezing.

By Matt Stiles, Sean O'Key, Byron Manley, Lou Robinson, Curt Merrill, Annette Choi, Rachel Wilson, Henrik Pettersson, Amy ...

In some areas, hazards have surged. Buildings in the highest severity zones will be subject to the strictest fire-resiliency rules.