Intensification of the Dollar Ridge fire was very evident today as I descended from the summit of Mt. Nebo. The photos below are in chronological order and were taken from 11:21 AM to 1:52 PM. This is a very common occurrence as temperatures climb and the the so-called boundary layer, in which thermals and turbulence generated at the Earth's surface occur, deepens. Note the formation of pyrocumulus clouds as well. Sadly I only had the cell phone.
Portable weather stations at about 9000 feet near the fire showed temperatures in the 70s, relative humidities near 10% and winds gusting to 30 mph. It doesn't get much worse than that. The low humidity was very apparent on my hike as I consumed 64 ounces of water, despite an early start, and still returned to the trailhead completely parched.
Fires and fireworks should simply be avoided this holiday week.