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,

ABC 10News reporter Moses Small reported live from Alpine, where wind gusts could reach 75 miles per hour in the next couple of days, elevating the fire risk for San Diego County.

The alert status for heightened combustion hazards in the county's inland valleys and mountains went into effect at 4 a.m. Wednesday and will last until 6 p.m. Friday.

The National Weather Service on Wednesday extended the wildfire warning through the end of the week for much of East County.

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 National Weather Service has issued a Red Flag Warning for San Diego County due to high winds and low humidity.

San Diego Gas & Electric began public safety power shutoffs Tuesday as San Diego County braces for a Santa Ana wind event and Red Flag Warning.

Red flag weather warning: A National Weather Service alert that warns the public — especially fire officials and firefighters — that strong winds are expected in specific areas of Southern California, and that there will be potentially dangerous fire weather conditions within the next 12 to 24 hours.

In San Diego, the Red Flag Warning for inland and mountain communities has been extended until at least 6 p.m. Friday, so our county remains on high alert due to the elevated fire risk. ABC 10News is bringing you extensive coverage on both the Los Angeles fires and how our area is preparing for the worst in this edition of the Wake Up Call newsletter.