A 30-acre fire in the Dry Fork area west of Vernal is expected to be contained Wednesday, and firefighters battled another eastern Utah fire on Diamond Mountain that flared back to life Tuesday, nearly doubling in size from 88 acres to 150.

Kim Bartel, dispatcher for the Uintah Basin Interagency Fire Center, said the lightning-caused blaze broke out Sunday 25 miles northeast of Vernal and had been reported contained at 2 a.m. Tuesday, but was whipped out of control again by winds of 20 to 30 mph.A 20-man crew from the Utah State Prison's Flame `N Goes firefighting unit battled the fire Tuesday and planned to return with a Bureau of Land Management helicopter from Elko, Nev., Bartel said.

The Diamond Mountain fire has been fueled by dead juniper and pinon trees, which were bulldozed into a pile several years ago and left in the area. No structures were endangered by the fire, Bartel said.

Fire officials predicted the Dry Fork blaze would be contained by 6 p.m. Wednesday. That fire had threatened structures in the area, and municipal fire engines were brought in, Bartel said.

A Rich County fire that blackened 2,000 acres of grass and sage about 5 miles west of Woodruff in northern Utah was controlled Tuesday and crews were released.