It could take weeks or months for the public to know what caused the fire that last month charred 6,600 acres in the Otay Mountain Wilderness as local Cal Fire officials continue their investigation.

Border 2 Fire. Border 2 Fire initially started 1:58 p.m. Jan. 23 in San Diego County. After being active for a week, it has burned 6,625 acres. By

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.

The latest forecasts have the rain arriving Wednesday and lingering off and on through Friday, before skies clear up next Saturday.

Cameo Fire initially started today at 11:30 a.m. in San Diego County. It has been burning on private land for two hours. At this time, the containment status is unknown and the cause of the fire remains undetermined.