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 ...

The region sees about 10 Santa Ana wind events a year on average, typically occurring from fall into January. When conditions are dry, as they are right now, these winds can become a severe fire ...

Advertisement When conditions are dry, as they are right now, these winds can become a severe fire hazard. The Santa Ana winds occur when there is high pressure to the east, in the Great Basin ...