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Archived

Avalanche Forecast

Feb 25th, 2020–Feb 26th, 2020
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Little Yoho.

Watch for buried wind slabs in steep terrain and enjoy the good skiing in sheltered areas.

Weather Forecast

A westerly flow will bring partly cloudy skies to the Banff forecast regions on Wednesday as another weak system approaches. We should see periods of flurries through the day with no significant accumulation. Strong westerly winds in the alpine will continue to move snow at ridge tops.

Snowpack Summary

10-20 cm of recent storm snow covers previously formed wind slabs in lee areas, and buried sun crusts on steep solar aspects. The Feb 1 rain crust is down 20-50 cm and present below 1900 m. A dense snowpack with no significant weaknesses is present in most areas, but thin rocky areas have a faceted base.

Avalanche Summary

No new avalanches observed or reported Tuesday.

Confidence

Avalanche Problems

Wind Slabs

Buried wind slabs are present in lee areas of the alpine with isolated pockets of wind slab down into treeline. Cornices have grown very large in recent weeks, so minimize your exposure to them when possible.

  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
  • Pay attention to overhead hazards like cornices which could trigger slabs.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2