Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1–2
On Monday we saw a lot of wind blown snow near treeline (see picture). The wind was predominently from the West and NorthWest, which means it was building Wind Slabs on East and SouthEast slopes. I observed a D1 Natural Wind Slab on a NorthEast slope at 7500 ft. Moderate winds overnight will continue to move snow.
On many slopes this wind direction has been a bit more Northerly than what we are used to. Look for recent, or unusal cornice growth, as well as scalloped textures on windward slopes, and variable snow depth/ski penetration on adjacent aspects as good clues for which slopes may be loaded.
There was a lot of cold, dry, powder out there to be blown around, and Wind Slab avalanches could be large enough to bury or injure a rider (D2).
(4/3/2023)
Moderate Blowing Snow on a NorthEast slope near treeline
Photo: Gabriel Coler