There is a 10% to 20% chance of flash flooding and landslides in some recently burned areas of Los Angeles County, forecasters say, including the Palisades and Eaton fire areas.

The fires, which began on Jan. 7 and are still not fully contained, have killed 28 people and damaged or destroyed nearly 16,000 structures. The rain will bring cleaner air and improve fire-fighting conditions, but some authorities have expressed concern that overall rain will make things worse.