This is the link to the animated satellite image for Pocatello, Idaho and a wide area around it. Click on the link for 1 km animation and watch as the day progresses.Morning finds the many canyons of northern Idaho filled with dense, stable clouds of smoke. Moreover most of Montana is covered with smoke. As the day goes on you will probably see plumes emerge in north central Idaho and Yellowstone Park and the surrounding country. Yesterday, Aug. 12, the tall and long plumes were very impressive by mid-afternoon.
Note some other NWS websites (Missoula?) might work even better.
Update on late Aug. 13. Although they were slow to develop today, the west central Idaho fires eventually put up very large plumes that drifted across the state and over to Montana.