The Hughes Fire near Castaic, California, has burned over 5,000 acres, prompting evacuations and school closures.

Warm and dry conditions will persist through Thursday as another Santa Ana pattern develops, bringing gusty northeast winds to Los Angeles and Ventura counties. Asignificant cooling trend will begin Friday and continue through the weekend as a cold storm system moves over the region.

Just a few years after the ozone hole was detected via satellite, the industrialized nations of the world, meeting in Montreal in 1987, adopted what is known as the Montreal Protocol.

A wind-driven wildfire charred dozens of acres in the sparsely developed northeastern reaches of San Diego County, damaging structures and forcing pre-dawn evacuations before crews could gain the upper hand on the flames Wednesday.

The Los Angeles haven’t spread in nearly a week, but the return of the Santa Ana winds to full strength could cause problems.

The Santa Anas are expected to be most powerful Monday night into Tuesday. Fire services across the region say they are ready.

Red flag warnings are in effect until Thursday for parts of Los Angeles, Ventura, San Diego, due to low humidity and an uptick in Santa Ana winds.

The National Weather Service has issued another rare Particularly Dangerous Situation warning in anticipation of Monday's Santa Ana wind event.

Two new wildfires started in Southern California Tuesday night and into Wednesday, as gusty Santa Ana winds continue to plague the state this week.

A fast-moving wildfire exploded to more than 9,200 acres near the Los Angeles County community of Castaic Wednesday morning, prompting mandatory evacuation orders and road closures, authorities said.

Santa Ana winds continued gusting across much of the Southland Wednesday as firefighters neared full containment of the Eaton Fire that has destroyed thousands of homes and killed at least 17 people.