A slow-moving low-pressure system will linger over the Southwest, bringing steady rain through at least Monday.

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.

A wet pattern will bring periods of rain and showers to Southern California, dropping an inch or two in the Los Angeles region — the most to fall since mid-April. It will be key for firefighters continuing to battle flames.