Dustin Gardiner reports from the edges of the Walbridge Fire in Sonoma County, one of the fastest-burning blazes overnight. CalFire, occupied with other fires, hadn't directed many resources to the area, but that changed Thursday. Gardiner talked to a local resident who had evacuated after clearing brush around his house all day and didn't know the fate of his home. | Full wildfires coverage: sfchronicle.com/wildfires

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