Avalanche Forecast
Issued: Mar 5th, 2022 4:00PM
The alpine rating is Storm Slabs and Loose Dry.
, the treeline rating is , and the below treeline rating is Known problems includeKate Ryan,
Some sneaky storm slabs are still reactive to skier triggering in isolated locations- assess convex rolls carefully.
Expect some bumpy, refrozen snow for travel in the morning on solar slopes and all aspects below treeline!
Summary
Weather Forecast
We are into a cooling/drying trend after our warm wet weather from earlier this week, with high pressure building over Rogers Pass.
Tonight: Cloudy with clear periods. Low -11*C. Moderate N wind.
Sun: Mix of sun and cloud. Low -11*C, High -8*C. Light W wind.
Mon: Flurries, trace accumulations. High -8*C. Light W wind with moderate gusts.
Snowpack Summary
Fluctuating temps have settled the upper snowpack & created a surface crust below 1500m (higher on solars).
Up to 45cm of snowfall early in the week with warm temps and a brief wind spike, created storm slabs over the Feb 26th interface - wind effect in open areas, small surface hoar and facets in sheltered terrain, and sun crust on steep solars.
Avalanche Summary
A possible skier accidental size 1.5 slab avalanche occurred in the top of the Teddy Bear trees area today.
Several size 1-1.5 loose snow avalanches have been triggered by the sun on steep slopes at all elevations over the past few days.
Confidence
Problems
Storm Slabs
Storm slabs buried a mix of surfaces; firm windslabs in all open terrain, sun crust on steep solar aspects below treeline, and small surface hoar and facets in sheltered areas.
- If the sun stays out exercise caution on steep South and West aspects in the afternoon.
- Lingering storm slabs may still be reactive on specific terrain features.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Dry
The March sun has some punch, and may trigger loose snow avalanches on solar aspects during the heat of the day.
- Avoid terrain traps, such as gullies, where the consequences of a small avalanche could be serious.
- Use extra caution on solar slopes or if the snow is moist or wet.
Aspects: South, South West, West.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Mar 6th, 2022 4:00PM