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Avalanche Forecast

Archived

Apr 24th, 2021–Apr 25th, 2021

Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.

Regions

Banff Yoho Kootenay.

Continued snow fall over the past few days have made for great ski quality on North aspects.

Click the "More Spring Conditions details" link found below for supporting information on various spring condition scenarios.

Weather Forecast

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.

Snowpack Summary

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.

Avalanche Summary

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.

Confidence

Problems

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.