Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific storm. Here's what you need to know about this threat.

A new atmospheric river will bring a new rainstorm to the Los Angeles area in the middle of the week, forecasters say.

Another atmospheric river storm is barreling toward the Bay Area this week, bringing “excessive rainfall” that could lead to flooding, the National Weather Service advises. A flood watch is due to take effect Wednesday night and remain in effect through Saturday night,