Avalanche Forecast
Issued: Mar 5th, 2021 4:12PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
snow safety,
Cooler temperatures and less solar input will likely slow down avalanche activity for Saturday. So far we have not seen evidence of the same persistent problems that are active in the Banff and Kootenay areas.
Summary
Weather Forecast
5-10cm overnight ending Saturday AM. Associated mod- strong winds will ease in the AM as well. 3000m temperatures around -15C and valley bottom highs around 0 to 5C.
Snowpack Summary
Strong SW winds have scoured exposed slopes and formed wind slab in alpine lee areas and open tree line slopes. Expect a new surface crust on solar aspects and lower elevations. In the Little Yoho Valley, the height of snow at tree line is ~280cm and does not seem to have the same Persistent Slab problem as Banff and Kootenay region.
Avalanche Summary
The last few days with warmer temperatures and increased sun have seen many avalanches to size 3 caused by explosives, skiers, and natural triggers.
Confidence
Problems
Wind Slabs
Previous SW winds have blown the available snow into hard wind slabs in alpine lees. We haven't seen much activity on these in the last 24 hours. Cornices have also grown from recent loading and numerous failures have been seen over the past week.
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 6th, 2021 4:00PM
