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Archived

Avalanche Forecast

Feb 21st, 2017–Feb 24th, 2017
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
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

Regions: Waterton Lakes.

Get out and enjoy the snow, but don't let the good conditions and a lack of signs of instability at lower elevations lull you into complacency.

Weather Forecast

Wednesday: Mostly Clear, Freezing Level Surface, Alpine Low -12, Light to Moderate West Wind.Thursday: Cloudy, Flurries (2-5cm expected), Alpine Low -15, Wind Light North switching to Southwest.Friday: Cloudy, Flurries (1-3cm expected), Alpine Low -17. Light Southwest Wind.

Snowpack Summary

Below Treeline 10-20cm of new snow overlies a strong melt-freeze crust.At Treeline and in the Alpine up to 50cm of snow has fallen since February 18th. This overlies a melt-freeze crust on solar aspects and old wind slabs elsewhere. Below this, the snowpack depth is highly variable as a result of numerous wind events.

Avalanche Summary

No new avalanches have been observed or reported.

Confidence

Due to the number of field observations

Avalanche Problems

Storm Slabs

Recent snowfall has been heaviest near the divide and tapers quickly as you move East. Be extra cautious in areas where the new snow is deepest.
The new snow will require several days to settle and stabilize.Assess start zones carefully and use safe travel techniques.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Loose Dry

Avoid exposure to terrain traps where the consequences of a small avalanche could be serious.Be aware of party members below you that may be exposed to your sluffs.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2