Avalanche Forecast
Issued: Mar 8th, 2018 3:04PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
jsmith,
Avalanche Canada
The best riding is likely to be found on sheltered north and east facing slopes.
Summary
Confidence
High -
Weather Forecast
FRIDAY: Mix of sun and cloud / Moderate to strong southwesterly ridgetop winds / Freezing level around 500 m.SATURDAY: Cloudy with isolated flurries / Strong southwesterly ridgetop winds / Freezing level rising to around 1000 m.SUNDAY: Mix of sun and cloud / Light to moderate southerly ridgetop winds / Freezing level rising to around 1300 m.
Avalanche Summary
No new avalanches were reported in this region on Wednesday. However, east of Ningunsaw Provincial Park, evidence of an old cornice triggered size 3 persistent slab avalanche was reported on an easterly aspect that failed on facets around 100 cm down at 2100 m.
Snowpack Summary
Expect to find sun crusts on steep solar aspects. The old wind slabs created over the weekend are faceting and becoming less reactive to human triggers.A crust/surface hoar layer buried mid-January is now roughly 80-140 cm below the surface, and still has the potential to be triggered from a thin snowpack spot, or with a large trigger like a cornice fall.It is unlikely, but may still be possible to trigger very large avalanches on facets at the bottom of the snowpack in steep, rocky, and shallow snowpack areas or with large triggers.
Problems
Wind Slabs
The old wind slabs formed last weekend are becoming less likely to human trigger. Steep, convex, and rocky areas are the most likely spots to trigger these lingering wind slabs.
Avoid steep, rocky, wind effected areas where triggering is more likely.Use ridges or ribs to avoid pockets of wind loaded snow.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 9th, 2018 2:00PM
