Avalanche Forecast
Issued: Jan 17th, 2021 4:46PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Persistent Slabs.
Brian Webster,
Good skiing can be found in areas sheltered from the wind. Enjoy
Summary
Weather Forecast
Mixed sun and cloud with no significant snow forecast for Monday and Tuesday. WInds will be light on Monday but will start picking up on Tuesday. Tree-line temperatures will be around minus eight.
Snowpack Summary
Up to 10 cm of new snow over thin sun crust on steep solar aspects and over previously wind scoured terrain at treeline and above. Jan 11th interface down 20-35 cm producing mod to hard results. Dec 25th, 13th and 7th layers down 50-120 cm and generally produce hard or no results. A rain crust exists on surface below 1500 m in eastern areas.
Avalanche Summary
Several loose dry avalanches up to size 1.5 out of very steep terrain. Ski hills only reported small explosive triggered avalanches.
Confidence
Problems
Wind Slabs
Wind slabs are present in steep lee areas in the alpine and exposed treeline ridges. These are becoming more difficult to trigger but treat lee loaded areas with extra caution especially if entering large steep terrain features.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Use caution in lee areas in the alpine and treeline. Recent storm snow has formed wind slabs.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
Several persistent weak layers are present in the top meter of the snowpack. These are generally not reactive to skier traffic but we still get occasional reports of avalanches on one of the layers, usually on steep convex rolls or in thin areas.
- Use caution on convex rolls at tree line and below where buried surface hoar may be preserved.
Aspects: All aspects.
Elevations: Treeline, Below Treeline.
Likelihood
Expected Size
Valid until: Jan 18th, 2021 4:00PM
