The most recent risk assessment, outlined in maps published by the California Geological Survey, illustrate the devastation possible from extreme-but-realistic scenarios.

Orange County and Santa Ana Mountains is under an updated flood watch which was issued by the National Weather Service on ...

Modernized changes to long-held operating procedures at the dams walling Lake Oroville and New Bullards Bar Reservoir in ...

A storm has dropped a significant amount of rain across Southern California, triggering the risk of mudslides, flooding and ...

Evacuation warnings have been issued for parts of Los Angeles County, near burn scar areas due to high mudslide and debris flow risks.

The strongest wave of a powerful winter storm reached Southern California overnight, bringing flash flood warnings, gusty winds, and dropping snow levels that will affect traffic Thursday morning.