These tree falls and the HUGE number of dead trees in the Sierras is changing how the wildland firefighters fight fires. Many dead trees are breaking 10 or more feet above ground. They just snap off. With the danger of so many dead trees falling they can no longer go into the forest and fight the fire. They have to stay on the edges and work on fire breaks instead. There is also a lot of fuel on the ground; needles from the beetle killed trees, dead trees blown down or snapped off. It could be a mess... once things dry out. I heard they are expecting more lowland and urban interface fires this season. I'm working on going past a 500 foot clearance around my place.