Mudslides, flooding downpours and feet of mountain snow were unleashed across California as the biggest storm so far this winter hit the state, including areas devastated by deadly wildfires in January.

In Southern California, large swaths of burned land from recent wildfires remain vulnerable to the rain and could quickly become sites of mudslides, forecasters warned. Last week, San Francisco ...

The biggest storm of the winter, packing a firehose of rain across much of California, will trigger flooding, mudslides and road closures that may put lives and property at risk during the latter part of this week.