Avalanche Forecast
Issued: Feb 15th, 2015 4:29PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Conrad Janzen,
Avalanche Canada
While parts of the Little Yoho region are improving quickly...we are still wary about the effect of all the recent load in any areas with weak basal layers or poor storm snow interfaces. Travel cautiously until the snowpack adjusts to the new load.
Summary
Weather Forecast
Light NW winds, tree line temperatures staying below freezing, no new precipitation, and a mix of sun and clouds is the forecast for the next few days. Watch for the effects of solar heating on steep south aspects when the sun comes out.
Snowpack Summary
Recent wind slabs have formed on many different aspects at higher elevations. 60-80 cm of settled storm snow at treeline and above overlies a generally settled snowpack. Some snow pits have found facets at this storm snow interface. Isothermal snow exists at low elevations. Cooler temperatures will help with overnight crust formation.
Avalanche Summary
No new avalanches observed today in Little Yoho, but a recent natural cycle occurred East of the Divide in Banff/Yoho/Kootenay. These were mainly triggered by recent loading by N winds and sun. Click here for photos of these events. As well, a few skier triggered slides were reported over the last 3 days in the Banff/Yoho/Kootenay region.
Confidence
Problems
Wind Slabs
Recent winds from many directions have formed wind slabs that are susceptible to human triggering. Recent cornice growth is also a concern as these may trigger any deep weak layers that are present in the snowpack.
- Use caution in lee areas. Recent wind loading have created wind slabs.
- Extra caution needed around cornices with current conditions.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 16th, 2015 4:29PM
