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Avalanche Forecast

Archived

Apr 23rd, 2021–Apr 24th, 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.

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.

Weather Forecast

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.

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

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.

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.