various surface irregularities resulting from wind erosion, saltation of snow particles and deposition.
Was up on Mt. Republic yesterday, 10 minutes from the top (3 hours in), planning a GLOrious center punch of the east face, when out of nowhere came immediate and sustained duck-and-cover winds. Soon Plans A, B and C were all off limits (avy hazard).
A rather annoying destruction of perfect powder. But cool to be humbled by Mother Nature's wrath.