The Tunnel Fire, located north of Flagstaff along Highway 89 (35°18'14.4"N 111°35'20.4"W) is at 100-plus acres and 0 percent containment.
Fire is rapidly spreading in a northeast direction due to high winds with medium-to-high-range spotting occurring in timber and grass.
Area evacuations have been ordered, and up-to-date evacuation information can be found via Coconino County.
While closure orders have not yet been issued, the public is asked to avoid the northern portion of U.S.Highway 89 from Elden Springs Road to the forest boundary for safety.
Resources on scene include three Type 1 handcrews, two dozers, two water tankers and seven engines.
The fire was reported at 4:22 p.m. Sunday and its cause is under investigation.