The White Sage Fire has expanded to 58,631 acres, but thanks to a combination of rainfall and lower temperatures, the containment has improved to 17%. According to an update by the Arizona Department of Emergency and Military Affairs, published on July 18th, firefighting efforts benefited from weather conditions that dampened fire behavior to mostly smoldering, indicating a reduction in open flames and spreading.
While the recent weather change, featuring cool temperatures and precipitation, has been a welcome assistant in controlling the blaze, officials caution that it is unlikely to extinguish the fire fully. An Incident Meteorologist cited in the report anticipates a return to warmer, drier air the following day, which could lead to increased fire activity as the now-wet vegetation begins to dry out again.
Invasive cheatgrass has played a significant role in the fire's rapid spread and remains a concern. The grass, known for its high flammability and ability to become a fire hazard within an hour of drying, presents a persistent challenge. Firefighters are employing tactics such as cold trailing, which involves hand-checking the fire’s edges for remaining heat to prevent re-ignition as they continue constructing containment lines under these precarious conditions.
Meanwhile, Highway 89A is still closed for the safety of the public and fire personnel. As reported by the Arizona Department of Emergency and Military Affairs, fire crews along the highway are actively removing trees weakened or burned by the fire, which pose a risk of falling. Chipping operations are simultaneously being carried out to dispose of debris and ensure safer travel in the future.
With the arrival of breezy winds and the potential for thunderstorms, which can produce gusty winds and lightning, the firefight remains unpredictable. These elements could stir up outflow winds, thus affecting the smoke's direction and subsequently air quality over the day. Local emergency management officials are keeping a close watch and have issued evacuation updates through the Coconino County Evacuation Map, urging residents and the public to stay informed.
