The blaze in Yosemite National Park was
measured at 2,044 acres by evening. It had no containment, and it was
likely to continue to grow amid light winds and hot conditions, U.S.
Forest Service officials said Sunday. ...
The summer temperatures were abetted by abundant fuel, officials said. Garrett Dickman, a Yosemite National Park biologist, explained the problem in simple terms: “There’s a lot of wood on the ground, and that wood is going up in smoke.”
Wood on the ground includes dead trees and branches from a 2013-15 die-off.
More.