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Archived

Avalanche Forecast

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

Regions: Little Yoho.

Cooler temperatures, surface crusts and small amounts of new snow will hold down the avalanche danger on Wednesday and Thursday, and natural activity should be limited - caution is still advised in shallow snowpack areas. The avalanche danger will rise again with another warming event moving in on Friday for the weekend.

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 to ~2800 m except north, where powder snow is found at higher elevations. The snowpack's upper 30 cm contains several crusts, the most prominent is Mar 27, formed from rain last week. This layer is not producing avalanches yet. Below this, 80 cm of firm snow overlies the Jan 30 facets, which are stronger in Little Yoho than further east. While the snowpack is settling, concern remains for shallow snowpack features where the facets are pronounced.

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

  • Uncertainty is best managed through conservative terrain choices.
  • 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 90-150 cm slab of dense snow now sits atop the persistent mid-pack facet layer from Jan/Feb. There has been a lot of large avalanche activity on this facet layer, and where it is weak and hasn't yet avalanched, triggering it remains a concern.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1.5 - 3