On this morning, we woke up under a sky full of stars. Clouds seem to regularly materialize out of nowhere in Death Valley and that pattern continued on this particular morning as storm clouds started forming about 45 minutes before sunrise.
Since I have a few Racetrack images that I already like quite a bit, I spent this morning experimenting with my ND filters to increase the motion in the clouds. I lucked out with one decent result. This is a 30 second exposure using a 4-stop ND filter for the clouds.