Avalanche Forecast
Regions: Jasper.
Weather Forecast
With the Jet Stream to the South cool temps dominate to the weekend. Snowfall or rain will tapper off by Friday AM. With freezing levels descending to the valley bottom snowpack overnight recovery will be good. Winds remaining light N to W. Daytime freezing levels will be close to 2,000m,
Snowpack Summary
On Northerly facing slopes above treeline up to 20 cm of loose new snow sits over a well consolidated upper snowpack. Melt freeze crusts are ubiquitous to treeline above which their distribution narrows to solar slopes up to 2600m. The mid-pack is consolidated and bridges the weak base. The bottom snowpack is a mix of weak facets and depth hoar.
Avalanche Summary
Avalanche activity will increase with thermal inputs such as rain, direct solar radiation and daytime warming. During the morning and after a good nights freeze the danger will gradually increase during the day. Typically it will be at it's greatest from 14:00. Likely trigger spots are from shallow rocks, cliffy terrain and shallow snowpack areas.
Confidence
Freezing levels are uncertain on Sunday
Avalanche Problems
Loose Wet
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood: Likely
Expected Size: 1 - 2
Cornices
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood: Possible
Expected Size: 2 - 3
Deep Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Unlikely - Possible
Expected Size: 2 - 4