Avalanche Forecast
Regions: Glacier.
Weather Forecast
The low pressure system that brought us 10cm is moving out of our region & being replaced by a high pressure ridge. No significant snowfall today with freezing levels rising to 1400m. Winds will be light from the SW with occasional gusts to 45km/h. The stormy weather returns next week with 20-30 cms of snow forecast for Tuesday-Thursday morning.
Snowpack Summary
12cm of snow overnight and 30km/hr South winds have built variable soft slabs in the alpine and exposed treeline areas. Below 2000m, 20cm sits on a supportive crust. Storm instabilities down 30-60cm are present but becoming less reactive. Persistent layers exists down 150cm (February crust) and near the base of the snowpack (November crust).
Avalanche Summary
2 size 2.5 avalanches were observed from the highway corridor on the north face of Mt MacDonald. These slides were triggered during a spike in wind speed late in the day on March 22nd. There have been reports of cornices failing and triggering large slabs in steep terrain in areas near Glacier National Park.
Confidence
Due to the number and quality of field observations
Avalanche Problems
Wind Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1 - 3
Persistent Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Possible
Expected Size: 3 - 4