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Santa Ana Winds in Southern California

Current Conditions
What's the Governor's Office of Emergency Services doing?
  • The Governor's Office of Emergency Services is monitoring weather forecasts and coordinating with state agencies, including CalFIRE, California National Guard and others to make sure emergency resources are available throughout the holiday weekend. OES Fire & Rescue Branch stands ready throughout the weekend to mobilize the state's cadre of fire engines and strike teams to respond to fires as needed.
  • Local public safety agencies have direct access to OES if additional resources are needed in the event of an emergency
  • OES has staff on call 24-hours a day, including round-the-clock monitoring of activity throughout the state at the State Warning Center in Sacramento

What are Santa Ana winds?




During the fall and early winter, high pressure over the high desert of the Great Basin region causes winds on the southern side of the high to blow east, toward the Pacific Ocean and lower air pressure offshore. The eastern winds push dry air from the inland deserts of California and the Southwest over the mountains between coastal California and the deserts. Santa Ana winds

As the air descends from mountains, it is compressed and the temperatures increase. These hot, and very dry winds(relative humidty of 10 to 20% or lower are common) dry out vegetation, increasing the fuel available to feed fires. The gusty winds and eddies of winds swirling through canyons and valleys also fan flames and spread tinders.

For more information - click here.

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