The fire has burned 9,009 acres since it began Friday, according to the US Forest Service.
"There is a potential for very active to extreme fire behavior with rapid rates of spread and moderate to long range spotting through the day, " the Incident Information System for the Coconino National Forest in Arizona reported.
Arizona Gov. Doug Ducey also declared an emergency, freeing up $200,000 in state funding to help with the wildfire.
The Coconino County sheriff ordered evacuations in all of the Blue Ridge Tinder Fire-affected communities north, east and west of Highway 87, stated a Facebook post on Sunday evening.
The wildfire service says in a release that so-called "overwintering" fires could emerge.
CLINTS WELL (AP) - Crews are trying to contain a wildfire that continues to threaten about 500 homes in a forested area of north-central Arizona.
Ducey's declaration made additional state resources available to the county for response efforts.
There are about 500 personnel fighting the fire, including 7 hotshot crews, 3 initial attack crews, engines, dozers, helicopters and overhead. The fire is over 11-thousand 400-acres burned near the C.C. Cragin ReservioR.
Strong southwest winds pushed smoke from the fires into Colorado on Monday.
This fire, forcing evacuations in Arizona, shutting down Highway 87.
Fire management team spokesman Brian Scott says higher humidity and expected cloud cover Tuesday should help almost 600 personnel assigned to the fire in an area with numerous summer and vacation homes. An animal shelter was also opened at Holbrook Navajo County Fairgrounds.
The public can contact the Coconino Office of Emergency Management at 928-679-8393.