A wildfire burning east of Layton grew overnight to about 117 acres, prompting the evacuation of 125 homes but threatening no structures. There have been no reports of injuries. The Snoqualmie Fire was burning near the Fernwood neighborhood in the foothills above Highway 89 and Antelope Drive.

Officials had previously estimated the fire — which was first reported about 10 p.m. on Monday — grew to 250 acres, but lowered that figure after the sun rose and they were able to get a better look at it, according to U.S. Forest Service spokeswoman Dana Harris. The cause of the fire is unknown.

All mandatory evacuation areas were opened by 7:30 p.m. Tuesday, according to Utah Fire Info. Fire crews were able to establish a fire break close to the homes nearest the fire, and they got some help from the weather. Winds blew north and east, driving the flames away from the houses.

Wildfire ignites on hills above Layton

Wildfire ignites on hills above Layton

According to fire officials, a helicopter began battling the blaze after the sun rose on Tuesday morning. Because it is a watershed area, it will drop water and not flame retardant on the fire. Several drones were sighted in the area, and Layton City Fire officials are urging operators to leave to avoid interfering with the helicopters.

Officials originally opened two evacuation centers, but closed one at an LDS Church on Cherry Lane; a center at Mountain View Baptist Church at 2585 E. Highway 89 remained open on Tuesday morning.

Commuters were urged to avoid U.S. 89 in the area, and the park-and-ride lot at Antelope Drive and Highway 89 is closed; according to city officials, it will remain closed on Wednesday. Davis County schools are in session on Tuesday, although buses will not run in affected areas.