Avalanche Forecast
Issued: Mar 10th, 2021 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs, Loose Wet and Deep Persistent Slabs.
Darren Vonk,
Thursday is shaping up to be a great day to get out and get up high. Clear skies's and calm winds. Keep in mind the wind slabs that are out there are sitting on top of a weak layer (Facets)
Summary
Weather Forecast
No precip expected over the next several days.
High -9 lows -13 for Thursday
Winds will be generally light out of the west
Snowpack Summary
High solar input have created crusts and moist snow on solar aspects at TL and below. Continuing SW winds have extensively redistributed the snow pack at TL and ALP. The mid pack is supportive in deep areas, but shallow snowpack areas are weak and failing on buried facet layers in test results.
Avalanche Summary
No field teams or avalanche report today
Confidence
Problems
Wind Slabs
Calmer winds are decreasing the reactivity of wind slabs. These sits on top of the Feb 20th facet interface.
- If triggered the wind slabs may step down to deeper layers resulting in large avalanches.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Wet
As the mercury slowly rises above 0 and the sun comes out, solar slopes will start to loose strength. Caution with your timing when traveling on/under these features.
- Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
Aspects: South, South West, West.
Elevations: Treeline, Below Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
Caution in thin facetted snowpack areas where triggering is more likely. This is a low probability but high consequence problem.
- Avoid shallow snowpack areas where triggering is more likely.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Mar 11th, 2021 4:00PM
