The way terrain and wind impacted the fires: This 3D map from Cal Fire provides an idea of the steepness of the terrain for the largest of the L.A.-area blazes, the Palisades fire.

The advisory extends from northern Los Angeles County south into Orange County and the Inland Empire to the east. “This stuff you do not want to inhale,” said NBC4 meteorologist Stepahnie Olmo.

The Palisades Fire, Eaton Fire, Hurst Fire, Lidia Fire and Sunset Fire are burning in Los Angeles County. Here’s where.

From 1950 to 2020, there were 3,219 Santa Ana wind days, and fires ignited on 12% of them. In this period there were 22,704 nonwind event days, and 12% of those days had ignitions.

Wind advisories will be in place for most of the region, including the eastern and central mountains in Los Angeles County, the Santa Monica Mountains, Santa Clarita Valley and San Fernando Valley ...

The Los Angeles County Department of Public Health issued a Windblown Dust and Ash Advisory until 10 p.m. Tuesday due to the strong Santa Ana winds expected to affect air quality throughout the area.