The Dragon Bravo Fire on the North Rim of the Grand Canyon has grown to more than 105,000 acres.
It grew by more than 10,000 acres between Wednesday and Thursday.
Red flag warnings were in place Thursday in some areas of the Kaibab Plateau with winds gusts expected to hit 35 miles per hour.
Officials also say humidity has dropped as low as 8% making the moisture content of forest fuels comparable to kiln-dried lumber.
However, according to managers, the wildfire is approaching a transition of fuels that could change its progression. In addition, it could also burn itself out when it reaches the burn scar of the 2018 Obi Fire.
Almost 1,200 personnel are now working on the Dragon Bravo Fire and it is 9% contained.
Response to the Dragon Bravo Fire as of Thursday has cost $29.4 million.
The blaze is now the largest active wildfire in the nation.
It has also become the 10th biggest fire in Arizona’s recorded history, according to information compiled by Arizona’s Family.