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

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

This weekend's cool temperatures and higher humidity are expected to give way to more Santa Anas and a new red flag warning Monday.

As wildfires continued to burn in Los Angeles, several new fires broke out in San Diego County, prompting evacuation orders and warnings.

A Red Flag Warning has been issued for San Diego's inland and mountain communities, as well as the Palomar and Descanso Ranger Districts of the Cleveland National Forest.

(Photo by Chris Stone/Times of San Diego) A red flag warning for critical fire danger, due to strong winds and low humidity, will remain in effect until 6 p.m. Wednesday for the San Diego County ...

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 ...

"A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly," the NWS said.

The Los Angeles haven’t spread in nearly a week, but the return of the Santa Ana winds to full strength could cause problems.