Santa Ana winds will create extreme fire danger and bring the possibility of damaging winds not seen in 10-plus years for some areas.

Wind speeds: The National Weather Service has issued wind warnings and alerts across much of Southern California. In L.A. and Ventura counties, sustained winds of 35 to 50 mph are expected, while gusts of 50 to 80 mph are possible. In some windy corridors, winds up to 100 mph are possible.