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Archived

Avalanche Forecast

Apr 1st, 2025–Apr 2nd, 2025
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Banff, Banff Yoho Kootenay, East Side 93N, Field, Kootenay, LLSA, Lake Louise, Sunshine, West Side 93N.

Cooler temperatures and small amounts of new snow will moderate the avalanche danger on Wednesday and Thursday, then another warm-up comes for the weekend and avalanche danger will rise again. As conditions slowly improve, be careful venturing out into bigger terrain unless it has already avalanched.

Confidence

Moderate

Avalanche Summary

No new activity was reported or observed today, but our observation network is limited today.

Snowpack Summary

Surface crusts on all aspects except north, where good powder snow can be found at treeline and higher. The upper 30 cm of the snowpack contains several crusts, the most prominent being March 27, formed during the rain event last week. Below this, a 70 cm slab of dense snow overlies another 70 cm of weak facets, and test results continue to show weakness and propagation in this layer. This is the main event in the snowpack that should dominate decision-making.

Weather Summary

Unsettled conditions are forecast for Wednesday, bringing isolated flurries with accumulations of 5-10 cm along the divide. An upslope storm will deliver more snow in eastern areas, with K-Country expecting more snow. A ridge of high pressure builds on Thursday, bringing clearing and a drying trend. Another warm-up begins on Friday for the weekend, with freezing levels to 2300 m by Saturday.

Terrain and Travel Advice

  • Be mindful that deep instabilities are still present and have produced recent large avalanches.
  • Give the new snow several days to settle and stabilize before pushing into bigger terrain.

Avalanche Problems

Persistent Slabs

A 60-100cm slab of dense snow sits atop the persistent mid-pack facet layer from Jan/Feb. In thin snowpack areas weak depth hoar extends to the ground. There has been a lot of large avalanche activity on this facet layer, and where it hasn't avalanched, triggering this layer remains a big concern

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1.5 - 3