Southern California is bracing for an "unprecedented" third Particularly Dangerous Situation warning in a month, as extreme Santa Ana winds increase fire danger.

The National Weather Service issued a Particularly Dangerous Situation warning Monday, says winds could reach up to 100 mph.

With parts of Los Angeles County still smoldering from wildfires, the expected rain this weekend would seem like a welcome relief. But how the rain falls could make the difference between a disaster respite or a disaster repeat.

The National Weather Service issued a Particularly Dangerous ... in the northeast portion of the county near Pasadena and Altadena. Flames from both fires engulfed structures forcing residents ...

Fueled by powerful winds and dry conditions, a series of ferocious wildfires erupted the second week of January and roared across the Los Angeles area.

San Francisco could see as much as six inches of rain over the next week as a moisture-packed storm known as an atmospheric river works its way south from the Pacific Northwest.

Jan. 22, 10:30 a.m. PST Cal Fire data marked the Palisades Fire at 68% containment and the Eaton Fire at 91% containment, listing no other active fires in Los Angeles as a red flag warning is in effect for much the region until Friday evening.

A variety of new technologies aim to improve wildfire detection and help map the spread of blazes Embers from the Eaton Fire fly down a residential street in Altadena, California, on January 8. Robyn Beck / AFP via Anna Fiorentino Freelance writer Earlier this month,

Snow briefly shut down a key interstate north of Los Angeles for hours while weekend downpours doused wildfires across Southern California

As the Eaton fire raged through Altadena, sheriff's deputies raced through the darkened streets evacuating residents. Then the fire neared their station, and they had to evacuate, too.

Creeks and rivers are not expected to flood this weekend, but some low lying areas may accumulate standing water.

Hundreds of Altadena residents, encouraged by L.A. County Supervisor Barger, vow to return, but we need to balance risks and merits of swiftly rebuilding after the fires.