UPDATED July 20; we added this time-lapse video that was shot by Christopher Redmond Thursday near Highway 385 just north of Pringle, SD. Here is how he described it:
First day of the Myrtle Fire southwest of Rapid City and east of Pringle, SD as it explodes. Fire was pretty much plume dominated until winds shifted out of the east in the late evening. Several large bursts in fire activity caused some pyrocumulus to redevelop during the last gasp of daylight.
Myrtle Fire at 4:12 p.m., about 3 hours after it started on July 19. The photo looks north across Wind Cave National Park. Photo by Bill Gabbert
UPDATED at 11:20 p.m., July 19, 2012
The Myrtle Fire that was reported Thursday at 1:30 p.m. has already burned 1,200 to 1,500 acres and is causing evacuations between Pringle and Hot Springs in the Black Hills of South Dakota. The fire started about 3 miles east of the small town of Pringle between US Highway 385 and Beaver Creek Road.
A wind shift in the late afternoon made things difficult for firefighters. As you can see in the photo above which looks toward the north, the fire was pushed by a west wind when the picture was taken at 4:12 p.m. At around 5 or 6 p.m., when the temperature at the nearby Elk Mountain weather station was 104 degrees and the relative humidity was 9 percent, the wind died and then began blowing out of the north and northeast. This caused spotting across Highway 385 as the fire spread rapidly to the west and south. By 10 p.m. it was approaching Shirt Tail Road and at 10:45 the Hot Springs Fire Department was toned out to assist with evacuations in the “Argyle Road West” area, which is south of Pringle and north of Hot Springs. Some areas north of Argyle Road and south of Wind Cave National Park are affected by the evacuations.
Myrtle fire. Map showing heat detected by a satellite at 10:18 p.m., July 19, 2012. Click to enlarge.
InciWeb should have more information about the fire on Friday.
The first heavy air tankers were requested at about 3:40 p.m., and two were dispatched from Montana, the dispatcher told the Incident Commander. About an hour later two additional large air tankers were requested. The first one, a P2V, arrived at 7:14 p.m., almost six hours after the fire was reported. The second arrived before 8 p.m. As far as I know the additional two that were ordered did not arrive at all on Thursday.
Air tanker 07 dropping on the Myrtle Fire at 8:24 p.m. July 19, 2012. Photo by Bill Gabbert
What’s wrong with this picture: the first air tankers arrived at the fire AFTER a Type 1 Incident Management Team (Hahnenberg) was ordered, which is used for managing the largest, most complex wildfires. Who knows, the IMTeam, with an ETA of 6 p.m. Friday, may arrive before the third and fourth air tankers show up.
