Avalanche Forecast
Issued: Jan 14th, 2017 8:11AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
ross campbell,
Parks Canada
Spotty wind slabs exist, watch for rising temperatures this afternoon.
Summary
Weather Forecast
The cold weather is being pushed east by a zonal flow from the Pacific. Expect A mix of sun and cloud today, temps slowly on the rise and light winds from the SW. On Monday we'll start to see precipitation, rising freezing levels and stronger winds! 30-50cm is forecasted from Monday to Thursday next week, with the FL possibly rising to 1500m
Snowpack Summary
The stagnant cold weather pattern has left behind quite a variable upper snowpack. In the Alpine wind slabs are present and or new low density snow, these sit on a variety of old surfaces, from hard windslab to faceted soft snow in protected areas. In Sheltered areas at and below tree line the upper snowpack is right side up.
Avalanche Summary
No new avalanches have been observed in the highway corridor since the 10th of January, where we observed wind slabs out of steep terrain to size 3. Small natural avalanches were observed in the back country during this cycle to size 1.5.
Confidence
Forecast snowfall amounts are uncertain on Monday
Problems
Wind Slabs
Stubborn windslabs exist on alpine features(ridge-crests, cross-loading gullies) from mod SW winds. These slabs are variable in distribution so assess each slope independently. They will be most reactive on convex rolls and in unsupported terrain.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.Avoid convexities or areas with a thin or variable snowpack.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 15th, 2017 8:00AM
