GERING, Neb. — Fire crews battling a western Nebraska wildfire that has destroyed some homes looked Tuesday to the skies with hope and trepidation as weather forecasters warned of thunderstorms. The National Weather Service forecast a 50% chance of thunderstorms producing heavy rains Tuesday afternoon into the night. A storm could help douse the Carter Canyon Fire south of Gering that has scorched about 25 square miles (65 square kilometers) of mostly grass and timberland, destroyed three homes and damaged several more in the Carter Canyon community that was evacuated Sunday. No injuries have been reported. While fire crews would welcome rain, they also fear lightning strikes that could spark new fires in the tinder-dry region, said Ben Bohall with the Nebraska Forest Service. Firefighters had contained about 30% of the fire going into Tuesday, and a lot of progress was made late Monday and overnight as winds died down from the 20 mph (32 kph) seen Sunday.