Back-to-back atmospheric river storms are set to hit Los Angeles County this week — giving the region much-needed moisture ...

Firefighters in Riverside County battled a wildfire that erupted in the Santa Ana river bottom Tuesday night, prompting evacuation warnings for residents in nearby homes. The Clay Fire, first reported ...

Answer: The Santa Ana winds have everything to do with weather. It starts with a high-pressure area over the Great Basin.

The ferocious Santa Ana winds that helped fuel the deadly wildfires around Los Angeles are forecast to ease later Wednesday, ...

The Clay fire broke out in the riverbed of the Santa Ana River in Jurupa Valley just before 5 p.m. on Tuesday, Jan. 21.

The ambitious project would add inflatable rubber dams to the Santa Ana River to essentially create a lake with standing ...

JURUPA VALLEY — A brush fire that broke out Monday in the Santa Ana River bottom amid offshore winds that propelled it in the direction of homes burned roughly an acre before its progress was ...

O.C. Sheriff's North Patrol deputies contacted 7 individuals, made 5 arrests, and issued citations and warnings for motorized ...

Just a few years after the ozone hole was detected via satellite, the industrialized nations of the world, meeting in Montreal in 1987, adopted what is known as the Montreal Protocol.

Like a slow-moving river that suddenly narrows and turns into rapids ... Humidity levels often plunge to single-digit percentages during a Santa Ana wind. The extreme lack of humidity in the air ...

such as the Santa Clara River Valley (including Interstate 5 northwest of downtown L.A.), Cajon Pass (I-15 north of the Inland Empire), the Santa Ana mountains of Orange County and Banning Pass (I ...