Avalanche Forecast
Regions: Glacier.
Weather Forecast
Freezing levels will remain around 1500m today. 10-15cm of snow will fall in the area, with moderate to strong SW winds at ridge-top. A weak ridge will bring a brief respite tonight, lowering freezing levels below 1000m. Flurries with minor accumulations are expected tomorrow.
Snowpack Summary
Storm snow has created a 20-30cm surface slab. The widespread Dec 2 surface hoar layer is down 40-70cm and is reactive to human loading. Recent snowpack tests showed the early November surface hoar layers reactive to heavy loads, popping off the columns in a sudden planar manner. This suggests avalanches could step down to deeper layers.
Avalanche Summary
Artillery avalanche control yesterday produced numerous avalanches up to size 4. Numerous natural avalanches up to size 3 were observed in the highway corridor before avalanche control commenced, earlier in the day. We suspect there were numerous natural avalanches in the backcountry yesterday, continuing today with the warm temperatures.
Confidence
Timing, track, or intensity of incoming weather system is uncertain
Avalanche Problems
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Very Likely
Expected Size: 1 - 3
Wind Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood: Likely
Expected Size: 1 - 3
Loose Dry
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Likely
Expected Size: 1 - 2