Avalanche Forecast
Issued: Dec 5th, 2019 5:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs and Persistent Slabs.
dsaly,
Avalanche Canada
Avalanche danger will be highest late in the day as new snow accumulates.
Summary
Confidence
Weather Forecast
Thursday night: Cloudy with scattered flurries, trace to 5 cm. Alpine temperature -10 C, south-southwest wind 10-25 km/hr.
Friday: Snow, 10-20 cm. Alpine temperature -2 C, southwest wind 20-45 km/hr.
Saturday: More snow, 10-15 cm. Alpine temperature -10 C, east-northeast wind 20-35 km/hr.
Sunday: Sunny with cloudy periods. Alpine temperature -13 C, north wind 15-30 km/hr.
Avalanche Summary
There have only been a handful of snowpack and weather observations from this area. Natural storm slab avalanches to size 1.5 were observed in the region on Wednesday. Reports indicate less reactivity in the new snow early this week compared to a more reactive storm slab in the North Columbia region. More snow will accumulate in the Cariboos Friday into Saturday, which may increase the reactivity in the snowpack.
Snowpack Summary
Storm snow totals reached 20-40 cm early this week along with moderate westerly winds. The new snow covered a faceted upper snowpack and previously wind-affected surfaces, and surface hoar in sheltered areas around treeline and below.
Down 35-60 cm, a layer of surface hoar (feathery crystals) may be found in sheltered areas around treeline. In these areas old, stubborn wind slabs may still be reactive where they overly the weak surface hoar on a crust.
A variety of crusts from late October are buried deeper in the snowpack.
Problems
Storm Slabs
Storm slabs will develop through Friday as snowfall accumulates around the region, adding to snow from early this week. Expect new storm slabs to develop, and be wary of recently developed slabs hiding under fresh snow.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
A surface hoar/crust layer, down 35-80 cm has become reactive with the loading of new storm snow. This layer is most likely found in sheltered openings around treeline and below.
Aspects: All aspects.
Elevations: Treeline, Below Treeline.
Likelihood
Expected Size
Valid until: Dec 6th, 2019 5:00PM
