Dozens of communities are now under mandatory evacuation orders in Southern California with evacuation warnings affecting dozens more as crews continued battling a pair of deadly wildfires in the region Friday.

Another round of Santa Ana winds has moved into Southern California and will spread south through San Diego County late Thursday. The additional dry air also is expected to worsen the region’s already very low humidity levels,

The fierce winds in the Los Angeles area subsided Friday, but critical fire weather conditions remain and red flag warnings are still in place.

Red flag criteria is generally when relative humidity is at 15% or less, combined with sustained winds and/or gusts of 25 mph or greater. Both of these conditions must occur simultaneously for at least 3 hours in a 12 hour period, according to the NWS.

The Mission Fire burned five acres in Fallbrook, California, before being contained by fire crews, damaging an outbuilding.

San Diego County, which is in the midst of one of the driest periods on record, will be lashed by unusually cold and expansive Santa Ana winds early Wednesday that could spark wildfires, snap

The winds will come and go, with the strongest gusts expected early next week, especially next Monday night and into Tuesday, forecasters said.

Although the strongest wind gusts have passed through the Southern California region, another "traditional Santa Ana wind event" will move in Thursday night.