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Archived

Avalanche Forecast

Mar 5th, 2018–Mar 8th, 2018
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
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
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: Waterton Lakes.

Hazard is diminishing for now. Stay vigilant as the warm temperatures and strong sun can wake weak layers up.

Weather Forecast

Moderate SW winds and day time temperatures rising to around freezing. No significant snowfall forecast.

Snowpack Summary

Alpine windward terrain is scoured but lee gullies are wind loaded.  Where there is snow the mid-layer is well settled, but overlies a sleeping dragon as a deep persistent layer at the bottom of the snow pack.

Avalanche Summary

Loose dry avalanches noted on steep terrain.

Confidence

Timing or intensity of solar radiation is uncertain on Wednesday

Avalanche Problems

Loose Dry

Avoid terrain traps, such as gullies, where the consequences of a small avalanche could be serious.Use caution above cliffs where small avalanches may have severe consequences.

Aspects: North, North East, East.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 1.5

Deep Persistent Slabs

No recent avalanches have been observed on this facet layer but this is the sleeping dragon.
Pay attention to overhead hazards like cornices which could easily trigger deep slabs.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Unlikely

Expected Size: 2 - 4

Wind Slabs

Isolated wind slabs in steep gullies
Use caution in lee areas. Recent wind loading have created wind slabs.Minimize overhead exposure during periods of heavy loading from new snow, wind.

Aspects: North, North East, East, South East.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2