The Red Flag Fire Weather Warning was schedule to be in effect until 8 p.m. Sunday because of a "critical" combustion risk resulting from strong Santa Ana winds out of the northeast coupled with humidity levels dipping below 15 percent and possibly into the single digits, according to the  National Weather Service.

By Friday evening and into Saturday morning, sustained winds of 20 to 30 miles per hour with peak gusts of 55 to 70 mph were expected to sweep canyons and foothill valley areas downwind of Cuyamaca Lake and Hellhole Canyon in Valley Center according to the National Weather Service.

The agency also issued a separate high wind warning, effective from 2 Friday morning until 11 a.m. Sunday, for the mountains. A high wind warning means a hazardous high wind event capable of causing property damage is expected or occurring.

Area firefighting agencies have beefed up staffing to be on high alert during the Red Flag Warning.

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