(CNN) -- Authorities in Colorado are deploying a fleet of aircraft to extinguish the fast-moving wildfire near Boulder that has forced about 3,500 residents to evacuate.

Cmdr. Rick Brough of the Boulder County Sheriff's Office, said seven tankers, two spotter aircraft and three helicopters are going to work in relatively favorable weather Tuesday to attack the blaze and protect the threatened dwellings.

At present, the fire has covered 3,500 acres and there has been minimal growth around perimeter in recent hours.

The planes are to operate in winds between 3 to 6 mph. On Monday, 40 mph winds proved to be a challenge for responders.

The high winds initially grounded air tankers Monday, making containing the blaze more difficult. Later in the day, three were able to fly until air operations stopped at nightfall.

Tuesday's conditions are "going to allow us to get air tankers up in the air," Brough said.

Many additional resources including equipment and manpower are coming, and the firefighters will be working in rugged and steep territory that's difficult to access, he said.

An investigative team will go in and document the structures involved, and those addresses will be posted on the Boulder County Office of Emergency Management website, he said. The witnesses who made the initial call on the blaze, reporting a fire in trees in Four Mile Canyon, will be interviewed.

No injuries have been reported but it's unclear whether there are any victims at this time.

"We did mandatory evacuations, but we still had people who didn't leave," Brough said. "There's many subdivisions up there."

About 1,000 homes had been evacuated Monday, Brough said earlier, and he confirmed that structures have been lost to the fire, though he did not know how many.

The fires meant no classes Tuesday for students who attend mountain schools in the Boulder Valley School District.

"Mountain schools include Jamestown, Gold Hill and Nederland elementary schools, as well as Nederland Middle/Senior High School," the district's website said.

Excel Energy said early Tuesday about 1,200 people were without power because of the fire.

In northwestern Oklahoma, where fires have been raging since the weekend, firefighters have gained the upper hand, according to an emergency official there.

Conditions were much improved early Tuesday in Woodward County, Oklahoma, where emergency officials have responded to as many as five wildfires since Sunday evening, when 40 mph winds began whipping through the region.

"All fires are about 90 to 95 percent contained," said Matt Lehenbauer, director of emergency management for the county. He said most crews were sent home overnight to get some rest, but will be back on the fire lines Tuesday morning.

At least one home was destroyed in a 300-acre blaze near Fort Supply Lake, Lehenbauer said. At least one firefighter suffered heat exhaustion in that fire, he said. No other injuries were reported.

Authorities believe embers from a campfire sparked the blaze. About 30 homes and 120 campsites were evacuated as a result of the fire.

Firefighters were also working a 1,200-acre blaze on the east side of the county, believed started by arcing utility lines, Lehenbauer said.

CNN's Amanda Watts, Dave Alsup and Erica Henry contributed to this report.