Banff Yoho & Kootenay National Park Avalanche Forecast
Issued: Apr 24th, 2021 4:00PM
Continued snow fall over the past few days have made for great ski quality on North aspects.
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More snow on the way Sunday with accumulation amounts of 5 to 10cm for the forecast region, higher values are expected to the East. Winds will remain in the light to moderate range Sunday. By Monday the winds will increase at upper elevations. Temperatures are expected to remain cooler Sunday with freezing levels reaching 2000m.
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.
Small loose dry avalanches were observed out of extreme terrain in the Lake Louise region 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.
- Use caution above cliffs where small avalanches may have severe consequences.
- Be very cautious with gully features.
With an above 2000m freezing level and chance of sunny periods on Sunday, 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 25th, 2021 4:00PM
The latest forecast danger ratings, broken down to elevation. See how an elevation is trending.