"If the fire picks up today with the winds that they are predicting and it happens to cross one of the containment lines, we could be looking at more evacuations," said Lexi Maxwell with the Texas Forest Service.
The fire and damage is in the area within F.M. 1774, Texas 105 and C.R. 362, located about 60 miles northwest of Houston.
A three-mile stretch of Texas 105 near the community of Stoneham is closed until further notice.
Officials said the blaze destroyed between 20-30 homes and 20 buildings, and several more have been threatened. At last check, the fire was at 25 percent containment.
One civilian was injured. The victim got stuck, pinned between two fire trucks. That person was taken to a hospital in Grimes County in unknown condition.
An evacuation is in place for residents who can see smoke from their homes.
A shelter has been set up at the Renaissance Festival venue. Residents who have been evacuated can go there immediately.
Officials said evacuees will not be allowed back in to their neighborhoods until later today at the earliest.
All evacuees are being told to stop by or send a family member to stop by the shelter and check in, even if they do not plan to stay there.
The Texas Forest Service needs the names, addresses and contact numbers for affected residents so they can give updates about their homes and when they can return to them.
The fire isn't the only danger to residents, according to TFS. Most of the trees in the area have been weakened by the fire. Those trees or their branches could fall at anytime, causing severe injuries.
We are gathering more information and will update you on Eyewitness News and abc13.com as additional details become available.