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Archived

Avalanche Forecast

Mar 22nd, 2020–Mar 23rd, 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
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

Regions: Kananaskis.

Conservative choices are a must, don't push it and don't go for it. The current health care system is under enough stress due to COVID19 pandemic. Mostly cloudy with light flurries on Monday.

Confidence

Moderate -

Weather Forecast

Monday is forecast for mostly a cloudy sky with sunny breaks with up to 3cm of snow. The hight temperature will be -3c in the alpine along with strong SW winds. Freezing level is expected to be valley bottom.

Snow is expected to start late Tuesday with upwards of 10-15cm of snow.

Avalanche Summary

Numerous dry loose stuffs have been observed up to size 1.5, mostly on steeper terrain.

Snowpack Summary

5cm of snow that fell Saturday has sluffed in steeper terrain and has probably become moist to some degree on solar aspects. Polar aspects have remained dry. Sunday's strong westerly flow in the alpine has created some slabbing, especially in lee areas. Expect to find crusts on solar aspects. Thin weak areas are the key places to be mindful of and the potential to awaken the basal layers. 

Terrain and Travel

  • Avoid convexities, steep unsupported terrain and rocky outcroppings.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Be aware of the potential for large avalanches due to the presence of a deep persistent slab.
  • Avoid areas with a thin or variable snowpack.

Avalanche Problems

Wind Slabs

Some buried wind slabs exist in the alpine. Digging will be key.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1.5 - 2.5

Deep Persistent Slabs

The deep persistent layer is still a concern, especially in shallow snowpack areas. A large cornice trigger could also be enough to weak up this layer.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 1.5 - 3.5