Above: The north side of the Indian Canyon Fire along the Cheyenne River late in the evening of July 17.
(UPDATED at 7 p.m. MDT July 18, 2016)
Around noon on Monday we visited the west side of the Indian Canyon Fire south of Edgemont, South Dakota. It was very quiet. Not much was going on at the airport, the incident command post, or along Highway 471. We only saw one location that was putting up much smoke and it was on the north side in some cottonwood trees near the Cheyenne River. That area probably has logs and dead trees that could smoulder for days.
The order for the Type 1 Incident Management Team was cancelled. The latest size estimate for the fire is 13,500 acres. At 9 a.m. today the incident management team reported there was zero containment on the fire. Then at 4:06 p.m. that increased to 60 percent. This just illustrates that containment numbers are meaningless most of the time and is the reason why we rarely regurgitate that statistic.
The six photos in the next gallery were taken around noon on Monday. Scroll down to see two other galleries. Click on a photo to see a larger version, then click on the arrows to view more.
(UPDATED at 10:28 a.m. MDT July 18, 2016)
Monday morning the Great Plains Fire Information office reported there had been “heavy rain” on the Indian Canyon Fire in South Dakota. When I left the Edgemont area at 7:30 Sunday night a thunderstorm was moving in and light rain was falling. Two rain gauges that are near the fire but not within the perimeter recorded 0.03″ and 0.07″ overnight.
The heat-sensing satellite did not detect any large heat sources Sunday night on the fire. That does not mean it is out. The sensors, about 200 miles overhead, can only “see” large concentrations of heat. And the grass, which comprises most of the vegetation in the fire area, can burn and then cool before the next satellite overpass.
The behavior of the fire on Sunday was affected by the moderate weather conditions — temperature around 80, relative humidity in the 30’s, and an 8 mph east wind. The forecast for the fire area on Monday predicts 96 degrees, southwest winds of 14 to 18 gusting in the mid-20’s, and 30 percent relative humidity. These conditions could dry much of the Sunday night rainfall.
Another factor slowing the fire was the use of air tankers, helping to keep the fire out of Edgemont. In addition to a DC-10 Very Large Air Tanker, seven other air tankers were used on the fire Sunday — four Single Engine Air Tankers and three large air tankers, T-02 and T41 (both BAe-146’s), and T-45 (a P2V). In addition, two National Guard Blackhawk helicopters worked on the fire Sunday.
The photos in the gallery below were shot around 7 p.m. MDT Sunday night. To see larger versions, click on one, then click the arrows to see more.
This was the first time that a Very Large Air Tanker has dropped retardant in the state of South Dakota. It carries 11,600 gallons, far more than any other air tanker currently certified in North America. The other Large Air Tankers hold between 2,000 and 4,500 gallons. Global Supertanker has a 747 Very Large Air Tanker with a 19,600-gallon capacity working its way through the FAA and Interagency AirTanker Board approval process.