The current drought in California has contributed to substantial tree mortality, a trend that will certainly continue into the future.Increasing temperatures will continue to stress trees and forests of the state in the future, and having the ability to periodically monitor forest conditions over large spatial scales is important, this information will be extremely useful for both public and private forestland managers in their decision-making process, e.g., for prioritizing areas for prescribed fire or mechanical thinning to reduce competition for water and decrease fire risk.