Avalanche Forecast
Issued: Mar 1st, 2016 4:24PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs and Wind Slabs.
aaron beardmore,
Avalanche Canada
We are mostly concerned with thin areas in Little Yoho at tree line and above that will have a weaker base. Assess the snow depth carefully on each slope, watching for changes in the strength of the basal layers.
Summary
Weather Forecast
The same patter persists. Light snowfall amounts with light to moderate West wind. Freezing level will remain below surface.
Snowpack Summary
Sun crust exists below small amounts of new snow on steep S and W aspects. Otherwise, 25-35cm of recent snow overlies a well settled mid-pack. The Feb 11 surface hoar can be found down 50-60 cm in isolated locations around treeline and produces moderate test results. The Jan 6th layer (down 80-120 cm) is gaining strength and producing hard results.
Avalanche Summary
No new avalanches noted.
Confidence
Problems
Persistent Slabs
We are tracking 2 weak layers in the upper 120 cm of the snowpack (Jan 6 and Feb 11 surface hoar). Their strength has improved, and they are sometimes hard to find. We consider these to be healing, but dig down and look for yourself.
- Avoid steep convexities or areas with a thin or variable snowpack.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Wind Slabs
There is potential for small windslabs on lee aspects above treeline. Watch for these at the local level.
Aspects: North, North East, East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 2nd, 2016 4:00PM
