Update at 10:35 a.m.: CAL FIRE incident command reports on how crews will attack the Gann Fire today, working to get a handle on the blaze. Update at 7:32 a.m.: Due to the Gann Fire, all Calaveras Unified School District schools are closed today. We will continue to closely monitor weather conditions, air quality, and guidance from emergency officials. As wind patterns continue to change, air quality conditions may fluctuate throughout our district. Update at 7:20 a.m.: CAL FIRE reports progress this morning on the Gann Fire burning in the Valley Springs area of Calaveras County.