Low hanging clouds can make for some pretty amazing photo opportunities. In the Gallatin Valley the weather systems always come in from the West and hang in the valley before exiting out over the mountains to the east. Since the Gallatin valley only sits at 4200ft in elevation those storms often are too high overhead to do much of interest, but down towards West Yellowstone at the Hebgen Lake where the elevation is 6500ft, the storms that move through can be pretty impressive.
I looked behind me on Saturday to this massive cloud bank move through the Pines. It was a thermal hole that had opened up enough for a brief moment in the rainstorm to allow a little light to make those clouds sing. When I saw it, it was like a storm of flames dancing on the other side of the trees. With the D5 and 24-70 AF-S, I took a couple of clicks and finished in Silver Efex Pro.