UPDATE: A fire at Palomino Cove near Jarrell tore through 55 acres Wednesday afternoon.
The fire started when a hot spot from a fire on Tuesday reignited.
Two homes were threatened by the flames, but firefighters were able to protect them from any damage.
By 6:30 p.m. the fire was completely contained.
Williamson County first responders said the dry grass in the area has been a major concern this week and with many firefighters tackling the blaze in Bastrop County, limited resources have been available.
"It makes it very difficult because, especially in the rural areas like this, it's always a mutual aid type of environment that you rely on. You're always relying on another larger department, or any other department, to help. Either to help back you because it's so hot you can't stay in these kinds of conditions for very long," said Williamson County Sheriff's Office Capt. Mike Gleason.
The Texas Forest Service helped fight the Jarrell fire with helicopters and bulldozers.
Williamson County authorities said they will continue to monitor the area through the night.
Williamson County Emergency Officials say one home is threatened, but no homes have been damaged.
No injuries have been reported, but officials encourage residents to watch for signs like coughing, shortness of breath or stinging eyes from smoke in the air, especially if you have chronic heart or lung disease.