As the wind flows over the Sierra Nevada and Santa Ana mountains, it drops from high elevation to sea level. The sinking air becomes compressed and heats up, and its relative humidity drops.

Santa Ana winds are returning to San Diego County Wednesday evening, surging temperatures and prompting a wind advisory for ...

As they move down the Santa Ana and Sierra Nevada mountains and shoot through valleys, the winds compress -- creating a rise in their temperature and a drop in their relative humidity. With hot, dry ...

The intense and fast-moving fires that have cut a path of destruction through the suburbs of Los Angeles, killing at least two people, are being driven by the region’s powerful Santa Ana winds ... out ...

As another round of wild Santa Ana winds threatens Southern ... The National Weather Service said powerful winds will blow from the Great Basin in Nevada through mountain and canyon passes ...

The fast-moving wildfires ripping through Southern California are being fueled by the state’s fierce Santa Ana winds. The Los Angeles ... warm and gusty northeast winds that blow from Nevada and Utah ...

The Palisades and Eaton fires have so far killed a combined 27 people as firefighters take advantage of a slight reprieve from the Santa Ana winds to ... the Santa Monica Mountains has grown ...

SAN FRANCISCO – The second in a trio of atmospheric river storms blasted Northern California on Tuesday with heavy rain, damaging wind ... mountains and 3,000-4,000 feet in the Sierra.