Breaking: Armstrong Fire reported in Contra Costa County on Aug. 11

Published Aug 12, 2026 #Armstrong fire

First discovered: 8:35 p.m. Aug. 11

Initial location: Contra Costa County, Calif.

Fire type: Wildfire

Fire name: Armstrong

A new wildfire was reported today at 8:35 p.m. in Contra Costa County, California.

Armstrong Fire has been burning on private land. At this time, the containment status is unknown and the cause of the fire remains undetermined.

Source: National Interagency Fire Center