STINNETT, Texas — A dusting of snow covered a desolate landscape of scorched prairie, dead cattle and burned out homes in the Texas Panhandle on Thursday, giving firefighters brief relief in their desperate efforts to corral a blaze that has grown into the largest in state history.

The Smokehouse Creek fire grew to nearly 1,700 square miles. It merged with another fire and is just 3% contained, according to the Texas A&M Forest Service.

Gray skies loomed over huge scars of blackened earth in a rural area dotted with scrub brush, ranchland, rocky canyons and oil rigs. In Stinnett, a town of about 1,600, someone propped up an American flag outside a destroyed home.

Dylan Phillips, 24, said he hardly recognized his Stinnett neighborhood, which was littered with melted street signs and the charred frames of cars and trucks. His family’s home survived, but at least a half a dozen others were smoking rubble.

“It was brutal,” Phillips said. “The street lights were out. It was nothing but embers and flames.”

The Smokehouse Creek fire’s explosive growth slowed Thursday as snow fell and winds and temperatures dipped, but it was still untamed and threatening. The largest of several major fires burning in the rural Panhandle section of the state, it has also crossed into Oklahoma.

Authorities said 1,640 square miles of the fire were on the Texas side of the border. Previously, the largest fire in recorded state history was the 2006 East Amarillo Complex fire, which burned about 1,400 square miles and resulted in 13 deaths.