Utah ? A wildfire that may have been started by sparks from a flat tire raced across thousands of acres toward a small town Friday, a day after burning through a campground and motel and forcing rescues.

With a highly skilled team on its way from Florida, 150 area firefighters were battling the 24-square-mile fire against a backdrop of extraordinary heat and drought, with no immediate relief predicted.

“It only takes a cigarette or a match and this stuff will explode,” said Fred Burns, owner of Burns Brothers Ranch RV Resort in Fountain Green, which was nearby but not affected.

The fire was burning toward the tiny community of Indianola, and residents in at least two dozen homes were advised to be ready to leave.

It began Thursday in a private campground in Salt Creek Canyon, 85 miles south of Salt Lake City. The campground was not a total loss, although a motel on site and some vehicles and trailers were burned, the U.S. Forest Service said.