Mudslides trap two dozen cars north of Los Angeles

Southern California welcomed the cooler weekend weather after what's left of Hurricane Kay veered off the Pacific Coast and faded, helping put an end to blistering temperatures that nearly overwhelmed the state's electrical grid. But unstable air persisted and powerful thunderstorms unleashed flash floods that inundated roads and highways across inland areas.

More than 50 people were rescued after mudslides trapped at least 24 cars and a responding fire truck in the mountainous Lake Hughes area north of Los Angeles on Sunday. No injuries were reported. Flood watches and advisories had mostly expired, but slow-moving thunderstorms were possible Monday, the National Weather Service said on Twitter.