blowout

A shallow, bowl-shaped depression excavated by wind in an area of loose sand or soil — most commonly in dunes, beaches, or overgrazed rangeland where vegetation has been removed and the surface exposed to deflation. The wind scoops out the center, and the excavated material accumulates on the downwind side as a crescent-shaped deposit. Blowouts are scars — they mark places where the surface was broken and the wind found its way in.