Fire investigators aren't sure what started  a wind-driven grass fire near Morrison Road and Bear Creek Boulevard Feb. 7.

It started before 2 p.m.  and forced the evacuations of the nearby Fox Hollow Golf Course, the clubhouse at Homestead Golf Course and nearby homes. The zone extended from Morrison Road to Hampden Avenue and from C-470 to Kipling Street. The evacuation center for people and their pets was Bear Creek High School.

An employee of a nearby ice rink said employees had to close the windows of the facility because of the smoke and described the scene as "apocalyptic." Winds gusted as high as 45 mph at times. The National Weather Service posted a high-wind warning through 5 p.m. Feb. 7. 

A tweet from West Metro fire said the fire was 100 acres at midafternoon. No injuries have been reported. We've heard that flames are as high as 40 feet in places.

Crews from the South Metro fire district as well as the Fairmount Protection District, Aurora Arvada and Golden districts are assisting. Aerial support won't be available because of the windy conditions, according to fire officials.