Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
The upper elevations of the Tetons have received about 10 inches of snow in the past 48 hours, four of which fell overnight. This precipitation was accompanied by strong westerly winds with average speeds reaching 40 mph on exposed upper elevation ridgelines. Skiers and riders have the potential to trigger stiff wind slabs up to a foot deep on very steep (>35°) and wind loaded slopes above 9,000’. Likely trigger spots include convex starting zones, cross loaded couloirs, and steep terrain below cliff bands. Cracking, collapsing, and recent avalanche activity indicate that the new snow is unstable. Move to low angle terrain if these signs are present.
(3/20/2025)
Wind slabs will be possible in terrain features like this today.
Photo: Christian Santelices