Avalanche Forecast
Regions: Purcells.
Confidence
Fair - Timing or intensity of solar radiation is uncertain
Weather Forecast
The region will see mostly scattered cloud on Sunday with the possibility of light rain on Monday. Freezing levels will sit at about 3000m for both days with moderate southwesterly ridgetop winds.
Avalanche Summary
Several size 2 point releases and slab avalanches were observed running within the storm snow on Friday. There will be a shift to wet loose and wet slab instabilities on Sunday and Monday as freezing levels rise.
Snowpack Summary
On Thursday night, light to locally moderate amounts of snow fell forming wind slabs that most likely settled considerably or turned to wet slabs with warming on Saturday. The recently fallen snow overlies well settled powder, melt-freeze crust sandwiches and wet grains. At lower elevations, warm temperatures continue to penetrate and weaken the isothermal snowpack. Deeper in the snowpack there are layers that may not be reactive with cooler temperatures, but should be on your radar as spring brings more prolonged periods of warm weather. These layers include near surface crusts, the early-February surface hoar (about 100-170cm down) and basal facets. Cornices in region are also large and will become weak with warm temperatures.
Avalanche Problems
Loose Wet
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Very Likely - Certain
Expected Size: 1 - 5
Wet Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible - Likely
Expected Size: 1 - 5
Deep Persistent Slabs
Aspects: North, North East, East.
Elevations: Alpine, Treeline.
Likelihood: Unlikely - Possible
Expected Size: 3 - 7