A dense turbulent wall of sand sweeps across the dunes, obscuring rock silhouettes before revealing them again under a warm orange haze. High-speed wind lifts fine grains into suspension (true suspension) while coarser grains bounce along near the ground in short hops known as saltation. The cyclical haze mimics how blowing sand thickens and thins as gusts wax and wane, cutting visibility to just a few meters at peak intensity.