Base spokesman Capt. Dave Bowen said the fire broke out around noon and high winds were causing it to spread quickly.
"It started off as a brush fire, but it certainly engulfed the local forest around here," Bowen said in an interview.
"It always makes it challenging when you have to deal with weather that's not co-operative."
As local and military firefighting crews battled the fire, parts of the base and a nearby industrial area were evacuated as a precaution. There were no reported injuries.
Bowen said homes in the area were not at risk, but residents were asked to prepare in case an evacuation was ordered.
He said two Natural Resources helicopters were dispatched to douse water onto the fire, while several other military and civilian helicopters assessed the area.