NWS' 3:40 a.m. advisory indicates winds were blowing northeast at speeds between 25 to 35 mph, with gusts up to 60 mph.

The National Weather Service has extended a Red Flag Warning until Friday morning for San Diego County's inland valleys and mountains.

A Red Flag Warning that went into effect Monday for San Diego County mountains and valleys has been extended due to strong gusty winds and low relative humidity.

The Border 2 Fire, a brush fire that erupted on Otay Mountain near the U.S.-Mexico border in San Diego County on Thursday afternoon, January 23, spread rapidly under a Red Flag Warning. RESTRICTIONS AND USAGE TERMS: Please credit “@kaayveee via Spectee”.

Strong winds and power outages have prompted schools in East County to cancel classes for the fourth day in a row.

A red flag warning was set to expire for San Diego County Wednesday as Santa Ana winds diminish, although dry conditions could still create concern for wildfires in the days to come, forecasters said.

A Red Flag Warning remained active for inland and mountain communities through Friday morning, which means it could be another busy day for local fire crews.

A wildfire in the hills near the U.S.-Mexico border exploded early Friday morning over thousands of acres, triggering school closures and evacuation orders throughout the Otay Wilderness Area. Wind from the ocean pushed the Border 2 Fire east as the day wore on and the evacuation area has expanded to include Dulzura and other rural spots east of Otay Mountain.

With many parts of Los Angeles County still smoldering from wildfires, the expected rain this weekend would seem like a welcome relief. But how the rain falls could make the difference between a disaster respite or a disaster repeat.

Firefighters continue to battle multiple fires that broke out this month, destroying more than 16,000 structures and leaving at least 28 dead.