Avalanche Forecast
Issued: Dec 17th, 2020 3:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Persistent Slabs.
matt,
Avalanche Canada
Steady winds have created new wind slabs to watch for. If the snow feels "cakey" beneath your feet or you punch through while walking, choose low angle terrain with no over head snow exposure.
Summary
Confidence
Weather Forecast
A cloudy day tomorrow with nothing for significant snow. Temps will be in the -8 to -5 range with gusty winds from the west. Expect gusts of 30km/hr.
Avalanche Summary
No field trip today, and nothing was seen on the drive along the Spray valley.
Snowpack Summary
Our storm didn't pan out last night, but the winds sure did! Lots of transport today with new slabs at treeline and alpine elevations. As the slabs grow, the Dec 8th layer may become reactive. It all depends on the specific loading pattern. Expect the Dec 8th to be down anywhere from 20-50cm.
Terrain and Travel
- Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
- If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.
Problems
Wind Slabs
Winds are finally starting to make some fresh windslabs out there. As these build they will become more reactive and have larger consequenecs to skiers and boarders.
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
There seems to be lots of variability with this layer. As always, thin areas transitioning to localized wind loaded pockets will be more sensitive.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 18th, 2020 3:00PM
