Firefighters are fighting the fire in steep, rocky terrain, with heavy fuel loading, long range spotting, erratic high winds, extremely low live and dead full moisture levels, which are all are contributing to extreme fire behavior. This extreme fire behavior alert was the context of a CalFire warning bulletin sent out to crews in the field. The alert stated that live fuel moisture samples taken from vegetation across the state have been the lowest sampled in the history of the state fire fighting agency. The alert also states that the heat sink properties, or the dissipation of heat from a fire, that live fuel moisture usually provide will be absent this season. The alert cautions fire fighters that they should assume live fuels are fully available to burn. Low live fuel moistures, and heavier than normal dead fuel accumulations under stressed vegetation, will cause explosive fire behavior this year. That combined with weather conditions that were unusually dry this spring, with historically low rainfall and mountain snow pack, over the entire state are leading to extreme fire behaviors such as those seen at the Moonlight Fire.