Avalanche Forecast
Issued: Jan 17th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Persistent Slabs.
Lynnea Baker,
Numerous days of warm temps are deteriorating ice climbs. Look for shady or north facing climbs as ice rebuilds.
Hoping for more snow on Tuesday to improve ski quality.
Summary
Weather Forecast
Tuesday: Cloudy with flurries, 10-15 cm accumulation. Moderate west winds. Alpine high -15. FL valley bottom.
Wednesday: Clearing through day. Moderate west winds. Alpine high -8. FL valley bottom.
Thursday: Partially cloudy with flurries. Strong extreme west winds. Alpine high -5. FL 1500m.
Snowpack Summary
Freezing levels on monday rose to 2100m. A 15 cm rain crust exist up to 2000m. A 1 cm temp crust exists to 2400m on solar aspects. Alpine surfaces range from hard windslab in lees and to bare ground. Well settled midpack. Facets above Dec 4 crust down 150-200 cm. A 20-60 cm thick Nov crust complex completes snowpack to ground.
Avalanche Summary
Evidence of previous cycle (Jan 8-12), with avalanches from size 2 - 4 can still be seen in most avalanche paths. No new avalanches reported or observed today. Limited field observations. Thanks to everyone posting on the Mountain Information Network, keep up the great work, we really do read them.
Confidence
Forecast snowfall amounts are uncertain
Problems
Wind Slabs
Strong to extreme SW winds and new snow will form windslabs in lees.
- Avoid shallow snowpack areas where triggering is more likely.
- Use caution in lee areas. Recent wind loading have created wind slabs.
Aspects: North, North East, East, South East, South, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
A few significant large avalanches ran on this layer last week.
- If triggered the wind slabs may step down to deeper layers resulting in large avalanches.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 20th, 2022 4:00PM
