Rain returned to California over the weekend, aiding with the ongoing wildfire fight across the LA area. But the arrival of rain also brought the risk of flash flooding and mudslides in recent burn scar areas.

The National Weather Service issued its highest fire weather alert level for portions of the Los Angeles area for Monday into Tuesday morning, as powerful Santa Ana winds return. Threat level: The "Particularly Dangerous Situation" Red Flag Warning indicates any fires that ignite could quickly grow out of control.

Critical fire conditions are expected to continue through Friday. But rain could be on the way this weekend. Here's what to know.

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.

California Governor Gavin Newsom has deployed fire engines, water-dropping aircraft and hand crews across the region—to enable a rapid response if a new fire does break out, according to The Associated Press.

The Santa Ana winds are dry, powerful winds that blow down the mountains toward the Southern California coast. The region sees about 10 Santa Ana wind events a year on average, typically occurring from fall into January. When conditions are dry, as they are right now, these winds can become a severe fire hazard.

After a much quieter weekend, Southern California is experiencing a major shift in the weather pattern. The winds will peak Monday evening and overnight but extend into Tuesday morning.

Santa Ana winds will continue whipping through Southern California through Thursday, sparking fears that progress made fighting wildfires that have scorched over 40,000 acres and left 28 dead ...

A "Particularly Dangerous Situation" warning remains in effect as strong winds cause extreme fire danger in Southern California.

Thousands have been ordered to evacuate in Southern California as the Hughes Fire ... according to Cal Fire. Strong Santa Ana winds are expected to continue Thursday. The area where the Sepulveda ...

Mauricio Arellano, superintendent of the San Bernardino City Unified School District, which co-sponsored the Wednesday, Jan. 22, event, told the crowd of about 50 that all children in the U.S. have a right to a free public education — regardless of immigration status.