Avalanche Forecast
Issued: Jan 21st, 2021 8:07AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
ross campbell,
Expect wind scouring and wind slabs in exposed terrain. Reports of good riding conditions still exist in sheltered areas.
Summary
Weather Forecast
High-Pressure, clear skies, cool temperatures, and light Northerly winds are forecasted today. Alpine temperatures will reach -10c today, and will fall back to near -15 overnight. This weather pattern is forecasted to continue until at least next week!
Snowpack Summary
Previous strong to extreme southerly winds has had widespread wind effect in the Alpine and at Tree Line. In sheltered locations one can find low-density storm snow on the surface; however wind scouring and hard slabs are the norm in many locations at and above TL. The Jan 10 layer is down 40-60cm in sheltered terrain at tree-line and below.
Avalanche Summary
Only 2 new avalanches were observed in the Highway Corridor yesterday. They occurred during the overnight period on Tuesday evening during the significant wind event, where values on MacDonald West Shoulder reached over 140 km/h! One size 1 skier controlled wind slab avalanche was reported on Little Sifton yesterday.
Confidence
Problems
Wind Slabs
Winds on Tuesday evening reached over 140km/h at Macdonald West Shoulder! This predominantly left behind wind scoured surfaces, and wind slabs in isolated terrain features.
- Avoid terrain traps, such as gullies, where the consequences of a small avalanche could be serious.
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 22nd, 2021 8:00AM
