Avalanche Forecast
Issued: Jan 21st, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
Lynnea Baker,
Temperatures may rise rapidly on Saturday with strong alpine inversions and remain high throughout the weekend.
Minimize overhead hazard wherever possible.
Summary
Weather Forecast
Sat: Cloudy with isolated flurries. Moderate west winds. Strong alpine temperature inversion. Freezing rising to alpine throughout the day.
Sun: Cloudy with isolated flurries. Moderate W winds. Strong alpine temperature inversion with temps remaining above freezing.
Mon: Cloudy with sunny periods. Light W winds. Alpine high -6. FL valley bottom.
Snowpack Summary
A hard rain crust exist on all aspects up to 2000m. 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
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
Problems
Persistent Slabs
Strong alpine inversions and high freezing levels will test persistent layers and cornices in sheltered alpine features on Saturday and Sunday. Minimize overhead hazard as temps at higher elevations are likely warmer than valley bottoms.
- Pay attention to overhead hazards like cornices which could easily trigger persistent slabs.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 24th, 2022 4:00PM
