Avalanche Forecast
Issued: Jan 25th, 2017 8:00AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
danyelle magnan,
Parks Canada
Summary
Weather Forecast
Unfortunately the ridge of high pressure will continue to block hope of any significant snow this week. Today expect mainly cloudy with no precipitation, an alpine high of -10*C and light winds. Thurs and Friday will be cloudy and although we may see some isolated flurries, they will only bring a trace of snow.
Snowpack Summary
~40cm of snow from last weeks storm is settling and is generally bonding. In some areas it overlies surface hoar and will be more reactive. Cooler temps are helping to soften the upper slab, improving snow quality. Recent snowpack tests generally indicate that the snowpack is stubborn to triggering, however it is weakest a low elevations.
Avalanche Summary
Recent natural avalanche activity has been limited to steep unskiable terrain such as off Mt Macdonald. However, there have been size 2.5 avalanches observed from this type of terrain regularly with avalanches running onto fans. Sluffing when skiing/riding steep terrain has also been observed.
Confidence
Wind effect is extremely variable
Problems
Wind Slabs
Wind slabs exist at ridge-top and on cross-loaded alpine features. They overlay a variety of surfaces, and are of most concern on steep terrain where the consequences of even a small avalanche are high, such as over cliffs and terrain traps.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.Choose well supported terrain without convexities.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 26th, 2017 8:00AM
