 So that set our new all-time record. And the hot conditions and low humidity that dry out the landscape increase the chances of a wildfire. In California, Joe Tyler, director of the state's Department of Forestry and Fire Protection, says the recent heat wave has exacerbated the problem, consuming thousands of acres. On Wednesday, California crews were battling at least 19 major wildfires and scorching temperatures and single-digit humidity. I'm Donna Warder.