Avalanche Forecast
Issued: Jan 27th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
Catherine Brown,
Daytime warming might cause cornices to weaken and fail.
Limit your exposure to terrain features effected by cornices as the day heats up.
Summary
Weather Forecast
Clear, dry days, with valley cloud and seasonal temperatures continues until Saturday.
There is an incoming storm forecast for Sunday.
Fri: Sun and cloud, Alp high -4*C, mod SW winds, fz lvl:1100m
Sat: Cloudy with sunny period, Alp high -6*C, mod SW winds
Sun: Flurries 10cm, Alp high -6*C, mod SW winds
Snowpack Summary
Surface hoar growing on surface, 5-8mm BTL, 2-4mm TL and above. Variable breakable surface crust exists on S-W aspects. Wind-affect can be found at treeline and above. The Jan 20 (2-4mm) surface hoar down 35cm, and Jan 11 (2-5mm) surface hoar down 70-90cm. The Dec 1 crust/facet combo is down ~1.5 - 2.5m and will require a big trigger to come alive.
Avalanche Summary
No new avalanches were observed along the highway corridor on Jan 27th.
Observations from Jan 26th:
We observed two natural windslab avalanches along the highway corridor, up to size 2, from north and south aspects.
Backcountry reports of numerous loose wet avalanches, size 1-1.5 off of SW faces on Ursus Minor in the Connaught Drainage.
Confidence
Problems
Persistent Slabs
Several persistent weak layers (see snowpack summary) are present in the upper 1m. Test the strength of these layers before committing to your line.
- Watch for signs of instability such as whumpfing, or cracking.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 28th, 2022 4:00PM
