A new round of high winds could whip up more fires in the L.A. area, with a Red Flag warning in effect through Wednesday.

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,

That’s leading to the creation of mountain waves, which arise when strong winds blow perpendicular to a mountain range. The waves shoot down the coastal side of the mountains, gaining speed along the way, and are more casually referred to as simple Santa Ana winds.

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.

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

The National Weather Service has issued a Red Flag waning for a wide swath of Southern California as Santa Ana winds are expected to bring dangerous fire weather to the region later this week.

A short reprieve in the strong destructive winds has granted firefighters an opportunity to curb the spread of the deadly Eaton Fire near Pasadena.

As the destructive wildfires continue to burn in Los Angeles County, weather officials have issued a new series of red flag warnings with another round of Santa Ana winds once again expected to slam the region.

Come Monday is another Santa Ana wind event that will run into Wednesday, predominately affecting Los Angeles and Ventura counties.