Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible - Likely
- Size
- 1–2
Variable wind direction has created this problem on all aspects in the alpine. Be aware that recently formed wind slab may be hiding under new snowfall.
We received 20-30 cm over the weekend, with more snow on the way. Ski quality is increasing, but so is the avalanche hazard.
Look out for signs of instability as this significant load will contribute to several types of avalanche problems in the coming days.
Variable wind direction has created this problem on all aspects in the alpine. Be aware that recently formed wind slab may be hiding under new snowfall.
A faceted weak layer exists under a thin crust in isolated northerly pockets. Depending on the amount of snowfall we receive, this layer could become active. We have had easy propagating test results on this layer, but no natural activity observed...thus far.
As the storm and its cloud cover dissipate, solar input will increase the likelihood of this problem.
20-30 cm of snow fell over the weekend. It is being redistributed by moderate variable winds at ridgecrest and exposed terrain features. In sheltered areas it is rapidly settling.
Under this, polar aspects contain a series of melt freeze crusts and faceted layers. On solar aspects these layers have combined to form a singular thick melt freeze crust.
The mid and lower snowpack is well settled.
Tues
Up to 23 cm snow by end of day. Low of -5 °C, High of -5 °C. Wind gusting to 30 km/h. Freezing level at valley bottom.
Wed
A mix of sun and cloud with isolated flurries. Low of -23 °C, High of -16 °C. Light ridge wind. Freezing level at valley bottom.
Thurs
Sunny with cloudy periods. Low of -20 °C, High of -11 °C. Wind to 20 km/h. Freezing level at valley bottom.
Current weather forecast: Mountain Weather Forecast