Avalanche Forecast
Issued: Nov 21st, 2015 9:30AM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Weather Forecast
Throughout Sunday we can expect a clearing trend with freezing levels eventually falling to valley bottom. Extreme westerly winds are also expected to shift to moderate and northwesterly as a dry arctic ridge develops for Monday and Tuesday.
Avalanche Summary
A natural avalanche cycle is expected to occur in response to new snow and extreme winds on Saturday. On Sunday, natural avalanche activity is expected to taper-off with forecast cooling and clearing. That said, newly formed wind slabs may remain ripe for human triggering for the next few days.
Snowpack Summary
Reactive wind slabs are expected to form as a result of snow and extreme westerly winds on Saturday. The reactivity of these new wind slabs will likely change with elevation and underlying snowpack structure. Due to limited observations, I have very little confidence in what that underlying structure may be, although faceting and surface hoar development may have occurred on shaded terrain. If you've been in the mountains, please share your observations on our Mountain Information Network.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Nov 22nd, 2015 2:00PM