Air quality alert affecting Los Angeles County until early Monday

Los Angeles County is included in an air quality alert reported by the National Weather Service on Saturday at 12:02 p.m. The ...

What to know about claims of California 'radiation fog'

The NWS notes that tule fog, a special kind of radiation fog, occurs each winter in the Central Valley of California. The Weather Network, a Canadian weather information service, says tule fog is ...

Dense fog advisory for North Bay Interior Valleys and East Bay Interior Valleys until Sunday midday

North Bay Interior Valleys and East Bay Interior Valleys are included in a dense fog advisory released by the National ...

Arctic temperatures, snow and flooding sweep across the U.S.

Northern Plains through the Southeast are under cold weather alerts this weekend and will face dangerously cold wind chills.

Arctic air sweeps south as residents of the Pacific Northwest remain on guard after severe flooding

An arctic air blast swept south from Canada, spreading into the northern United States. Meanwhile, residents of the Pacific ...