SAN DIEGO (FOX 5/KUSI) — The National Weather Service has issued a Red Flag Warning for most of eastern San Diego County amid another round of Santa Ana winds.

NWS on Sunday said Santa Ana winds will bring gusty winds and elevated to critical fire weather conditions to inland areas from Monday through Wednesday.

Red Flag Warning

While San Diego County inland mountains and valleys and Riverside County mountains were initially forecast to be under a Fire Weather Watch from Monday afternoon through Wednesday afternoon, the National Weather Service on Sunday upgraded that to a Red Flag Warning for those areas.

The NWS map below shows the areas under a Red Flag Warning from 4 p.m. Monday through 6 p.m. Wednesday due to strong gusty eastern winds and low relative humidity.

NWS says a Red Flag Warning means if a fire does start, it could spread rapidly due to the combination of low relative humidity, strong winds and warm temperatures.

San Diego County is currently experiencing the driest start to the rainy season in the past 174 years.

New Round Of Power Outages

SDG&E on Sunday notified around 55,000 customers they could lose power starting Monday night as the utility company works to reduce the wildfire risk in those areas.

SDG&E notified 54,937 customers in areas across the county to be prepared for potential power shutoffs as the weather conditions continue.

View a map online here of areas at risk for Public Safety Power Shutoffs during the latest Red Flag Warning.

Air Quality Alerts

The new Red Flag Warning comes as as firefighters continue to battle wildfires burning throughout Los Angeles. The wind has been changing course over the past few days and has brought some of the smoke to the San Diego region, causing a dip in air quality and prompting North County fire officials to issue a smoke advisory on Saturday.

North of San Diego County, NWS issued an air quality alert on Sunday due to wildfire smoke in parts of Los Angeles County, and for windblow dust in parts of the South Coast Air Basin, Coachella Valley, and Eastern Riverside County.

You can check the real-time air quality of your city at AirNow.gov. 

San Diego County and Alert San Diego advise to be prepared to evacuate if you are in those areas under a Red Flag Warning.

San Diego Mayor Todd Gloria posted on X tips for creating a Wildland Fire Action Plan to help residents prepare for a major wildfire.