Another powerful storm is now sweeping across California, bringing heavy rain and high winds to the Bay Area in the early hours of Christmas Day. A flash flood warning is in effect in San Francisco.

A sweeping flood watch stretching more than 800 miles along California’s coast and interior plains is in effect this week as a series of powerful atmospheric river storms threaten widespread rainfall, ...

A major atmospheric-river storm walloping the state with heavy rains, strong winds and major snow has landed in Southern California, bringing what forecasters say is likely to become the region’s ...

Making and maintaining an accurate flood map is neither simple nor inexpensive. Even after an investment of more than $1 billion to take flood maps into the digital world, only 21 percent of the ...

A series of atmospheric river storms are bringing a flood watch to nearly 40 million California residents. The National Weather Service has issued flood watches for most of the state through at least ...