Avalanche Forecast
Issued: Jan 16th, 2021 5:06PM
The alpine rating is Wind Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeConrad Janzen,
Alpine winds remain elevated on Sunday so watch for some wind loading in steep overhead terrain and gullies. Good skiing can be found in areas sheltered from the wind and travel is easy. Enjoy!
Summary
Weather Forecast
A cloudy day on Sunday with alpine winds out of the West in the moderate to strong range with a couple cm's of new snow forecast for the day. Treeline temperatures should be fairly steady between -6 and -8 C with light winds at lower elevations.
Snowpack Summary
Wind effect in exposed alpine and treeline terrain. Thin sun crust on steep sheltered S aspects. Jan 11th interface down 20-40 cm with surface hoar found in isolated locations. Dec 25th, 13th and 7th layers are down 50-120 cm and generally produce hard or no results. Nov crust present near the ground.
Avalanche Summary
No new avalanches reported or observed in the Little Yoho region.
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 17th, 2021 4:00PM