UPDATE @ 9:00 p.m., Sept. 6
CBS4 in Denver is reporting that four of the firefighters who were working on the fire lost their homes in the blaze, according to Laura McConnell of the fire’s Incident Management Team. After they were notified, they were released from the fire.
CBS4 also reports that the fire has burned 3,500 acres. The Rocky Mountain Area Coordination Center reported at 7:45 p.m. that the fire had burned 3,000 acres and 12 structures.
There is another time-lapse video of the fire HERE.
UPDATE @ 6:21 p.m., Sept. 6
According to Boulder Channel 1 news, the Fourmile fire near Boulder started when a propane truck crashed in Fourmile Canyon.
Sometime after 5 p.m. today the winds decreased enough to allow the first air tankers to be dispatched to the fire. They had been staged at Rocky Mountain Metro Airport, waiting for weather conditions that would allow them to safely attack the fire.
UPDATE @ 5:00 p.m., Sept. 6
Here is 17-second time-lapse video showing 6 minutes of fire activity on the Fourmile fire near Boulder, Colorado.
UPDATE @ 4:20 p.m., Sept. 6
The maps below of the Fourmile fire near Boulder show heat that was detected by the MODIS satellite earlier today.