A late-season snowstorm is expected to drop up to 7 inches of snow to some Southern California mountains this weekend.

A system of low pressure is bringing rain and unseasonably cold temperatures to most of Southern California, and communities ...

Whales and dolphins keep washing up dead in Southern California — scientists say this is responsible - Sea lions, dolphins, ...

At 12:34 p.m. on Thursday, the NWS San Diego CA issued a wind advisory valid from Friday 2 p.m. until Saturday 11 p.m. The ...

An air quality alert was reported by the NWS Phoenix AZ on Friday at 7:19 a.m. in effect until Sunday at midnight. The alert ...

An "unprecedented" toxic algae bloom has overrun the coast of Southern California, sickening marine animals and staining the ...

A cool, wet weather pattern will probably bring some April showers to Southern California. Areas of Los Angeles could see up ...

A toxin released by one of the largest algae blooms on record off the Southern California coast was linked to the deaths of a ...

The Argo program collects data vital to global weather forecasting and developing seasonal scale forecasts like El Niño and La Niña, for producing drought forecasts across the U.S., and for mapping ...

The area was labeled an extreme danger zone by regional health and environmental groups on Thursday, just days after 16 dead ...

"This is the worst domoic acid bloom we have seen in Southern California," said Dr. Alissa Deming with Pacific Marine Mammal ...