The Santa Ana winds occur when there is high pressure to the east, in the Great Basin, and a low-pressure system off the coast. Air masses move from high pressure to low pressure, and the more extreme ...

Cities with first-time fire zone designations include Santa Monica, La Cañada-Flintridge, South Pasadena, Alhambra, ...

explains what causes extreme winds like this in Southern California, and why they create such a dangerous fire risk. The Santa Ana winds are dry, powerful winds that blow down the mountains toward ...

The Santa Ana winds are dry, powerful winds that blow ... major ignition source for destructive fires in Southern California. The Eaton Fire, which has burned many homes, is at the upper perimeter ...