Wind gusts topping 70 mph were recorded Monday afternoon as Southern California was buffeted by a major Santa Ana wind event.
The National Weather Service said the high winds were causing dust storms and had created zero-visibility conditions in some desert areas.
In Lancaster, winds were clocked at 70 mph amid a sand storm. In Imperial County, a 73 mph gust was reported.
Scattered power outages were also reported.
A high-wind advisory is in effect across Los Angeles and the San Gabriel Valley, where gusts could peak at 45 mph, said weather service meteorologist Andrew Rorke.