SPRINGERVILLE, Ariz. (AP) -- A raging forest fire in eastern Arizona has scorched an area larger than the size of Phoenix, threatening thousands of residents and emptying towns as the flames raced toward New Mexico on Wednesday.
The 607-square-mile blaze has destroyed 11 buildings but details or locations were not available, U.S. Forest Service officials said. It has blackened about 389,000 acres, a swath larger than the state's capital at 519 square miles.
Crews had hoped that burnouts overnight would help to slow the blaze, but fire information officer Suzanne Flory said only some lines were burned before humidity levels got too high. Crews completed some dozer lines south of Springerville and Eagar to protect the communities from the flames.
"They got some of the burnout done, but it got too moist. Some dozer line is in and they will continue with that," Flory told The Associated Press.
Winds in the area were expected to gust up to 35 mph Wednesday. Officials in Catron County, N.M., told residents of Luna to be prepared to leave if winds push the blaze into western New Mexico.
About half of the 4,000 residents who call Eagar home were forced to leave Tuesday as the fire licked the ridges surrounding the area. The town's remaining residents and those in neighboring Springerville worried as they awaited word of whether they will have to flee, too.
"Everybody that's here is suffering from anxiety from this," Apache County Chief Sheriff's Deputy Brannon Eagar told residents.
"We never thought we'd see this roll over the hill, but it's here and we're going to deal with it the best that we can. Some people are frustrated, and I can understand that, and I'm sorry," he said.
As daylight waned Tuesday, cars, trucks and trailers loaded with belongings streamed out of Eagar as sheriff's deputies and police officers directed traffic. Flames dotted a ridge on the southeastern side of Springerville, and columns of orange smoke rose from the hills. Ash rained from the sky, which was filled with thick smoke, and when the sun peeked through, it was blood-red.
Crews worked feverishly overnight to ignite unburned areas of grass and other fuel to starve the fire in case it burned over the ridge and into the grasslands and stands of trees that border the two towns.
"Right now, it's not moving as fast," fire commander Joe Reinarz said. "This is our chance. When we get it down here in the pinon and juniper and the grasslands, we can make a lot of advances on getting a corral around this thing."
The blaze, burning in ponderosa pine forest, is driven by wind gusts of more than 60 mph since it was sparked May 29 by what authorities believe was an unattended campfire. It became the second-largest in Arizona history on Tuesday.
No serious injuries have been reported, but the fire has destroyed 10 structures so far. It has cast smoke as far east as Iowa and forced some planes to divert from Albuquerque, N.M., some 200 miles away.
By late Tuesday, the flames were about two miles from Springerville and Eagar, fire officials said. The blaze did skirt around Greer because crews were able to keep it out of the canyons surrounding the small resort town.
Thousands of firefighters, including many from several western states and as far away as New York, are already helping.
Dozens of them worked Tuesday alongside a stretch of U.S. 191 about two miles outside of Springerville, burning vegetation along one side of the highway to keep the approaching fire from jumping across and heading into town. Other crews removed brush from around homes near the foothills.
Angie Colwell, her husband Mike and their two children were loading up their belongings as authorities ordered their Eagar neighborhood to evacuate.
"We love the mountains and we're just afraid of what's going to be left after the fire comes through," the longtime resident said.
The Apache County sheriff's office issued the evacuation order for areas south of state Route 260 and east of Greer just before 4 p.m. The highway was closed after the evacuation, and patrol cars were stationed at checkpoints leading south.
Eagar has about 4,000 residents, while Springerville has another 2,000. In all, about 7,000 people have been ordered to prepare for evacuation in recent days.
With a blaze as large as this being driven by unpredictable and gusty winds, putting the fire out is a gargantuan task. All fire managers can do is try to steer it away from homes and cabins by using natural terrain, burning out combustible material first and trying to put out spot fires sparked by embers blowing in front of the main fire front.
While he gave no guarantees, Reinarz told residents he thought the towns were defensible as long as the wind cooperated and firefighters were able to use the lowlands to their advantage.
Reinarz and his crews have the confidence of residents, some who spoke up during the public meeting to offer support. Signs of appreciation have also popped up in front of businesses and homes.
For those who have been forced to leave, the American Red Cross has an evacuation center at a high school about 15 miles west in Lakeside, Ariz. The center was opened at Blue Ridge high after last week's evacuation of about 2,700 people from mountain communities, but only about 50 were there before the new evacuations Tuesday.
The cost of fighting the blaze has approached $8 million, and forest supervisor Christopher Knopp said it's likely to get more expensive as more resources and personnel are used.
Another major wildfire was burning in southeastern Arizona, threatening two communities. The 166-square-mile Horseshoe Two fire has devoured three summer cabins and four outbuildings since it started May 8.
Arizona's largest blaze came in 2002 when flames blackened more than 732 square miles and destroyed 491 homes west of the current fire. A fire in 2005 burned about 387 square miles in the Phoenix suburb of Cave Creek and consumed 11 homes.