Banff Yoho & Kootenay National Park Avalanche Forecast
Issued: Apr 23rd, 2021 4:00PM
Welcome to the diurnal spring swing, where the daily melt freeze cycle will keep your boots muddy.
Click the "More Spring Conditions details" link found below for supporting information on various spring condition scenarios.
Tomorrow will be a mix bag of cloud, snow flurries (1 - 5 cm) and a possibility of sunny periods, a classic spring day in the Rockies. The freezing level is expected to climb to just over 2000 m. Winds will remain in the light range from various directions. Chance of another 5 cm of snow Saturday night into Sunday morning.
10 to 25 cm of low density snow has buried crusts on all aspects to 2200 m and to ridge top on solar slopes. There are several persistent layers in the mid to lower snowpack that are likely only a concern on alpine north facing terrain where no crusts are found in the snowpack while temperatures remain cool.
No new avalanche activity observed or reported today.
During last weeks warmup, persistent layers in the mid and lower snowpack were re-activated in a few instances with cornices and explosives, producing large avalanches, but activity has tapered since.
10-25 cm of new snow will be sitting over surface crusts on all but high north aspects. Expect this snow to sluff naturally in extreme terrain and with skier traffic in steep terrain. Additional snowfall will contribute to this problem on Saturday.
- Be very cautious with gully features.
- Use caution above cliffs where small avalanches may have severe consequences.
With an above 2000m freezing level and chance of sunny periods on Saturday, expect solar slopes to start to deteriorate by midday at lower elevations.
- Use caution on solar slopes if the snow is moist or wet.
Aspects:South East, South, South West, West.
Valid until: Apr 24th, 2021 4:00PM
The latest forecast danger ratings, broken down to elevation. See how an elevation is trending.