Wind Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1–2
Strong outflow (northeast) wind has formed wind slabs on south and west aspects at all elevations.
Continually assess conditions as you move through terrain
Cold temperatures are softening the upper snowpack, avalanches are most likely where the snowpack feels “slabby”
Strong outflow (northeast) wind has formed wind slabs on south and west aspects at all elevations.
Two surface hoar layers from January can be found in the upper snowpack in sheltered terrain. These layers have produced large rider triggered avalanches.
On Thursday and Friday several natural dry loose avalanches up to size 1.5 were observed in steep terrain.
Several small skier triggered wind slab avalanches were also reported on Thursday.
On Wednesday 1 size 2.5 remotely triggered persistent slab avalanche was reported. This avalanche was on a northwest aspect in the alpine and ran on the surface hoar from late January.
Previous strong to extreme northeast outflow wind has scoured windward terrain at all elevations. In sheltered terrain 20 to 40 cm of faceted snow overlies a surface hoar layer from late January.
Another layer of surface hoar was buried near the middle of January and can be found 30 to 50 cm deep.
A layer of facets and a crust from early December is buried 100 to 200 cm deep. This layer is generally not a concern in this region.
Saturday Night
Clear skies. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -14 °C, potential for inversion with warmer temperatures in the alpine.
Sunday
Sunny. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -9 °C, potential for inversion with warmer temperatures in the alpine.
Monday
Sunny. 10 to 25 km/h east ridgetop wind. Treeline temperature -10 °C.
Tuesday
Sunny. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -5 °C, potential for inversion with warmer temperatures in the alpine.
More details can be found in the Mountain Weather Forecast.