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Archived

Avalanche Forecast

Mar 11th, 2018–Mar 12th, 2018
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
3: Considerable
The avalanche danger rating below treeline will be considerable
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
4: High
The avalanche danger rating below treeline will be high
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
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Kananaskis.

The freezing levels are rising and the overnight lows are climbing. This spring heat will quickly increase the avalanche hazard.Avoid large slopes with solar aspects.

Confidence

Moderate -

Weather Forecast

Monday is forecast for another sunny day with the freezing level going up to 2400m. Winds are suppose to be light out of the West. Tuesday and Wednesday will see more warming and the freezing level should reach 2900m.

Avalanche Summary

Several loose wet avalanches up to 1.5 on solar aspects.Several slabs released at all elevations on NE to SE aspects up to size 2

Snowpack Summary

Extensive wind slabs in the alpine that reach down to isolated areas of treeline and cross loaded features. Moist snow on steep solar aspects and on all aspects up to 2200m that are not shaded. Good skiing was still found on shady aspects in the trees.

Avalanche Problems

Wind Slabs

Lots of wind slabs in the Alpine and along ridgelines at Treeline. Steep and unsupported terrain should be considered suspect.
Be careful with wind loaded pockets while approaching and climbing ice routes.Avoid steep lee and cross-loaded slopes

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1.5 - 2.5

Loose Wet

Steep, rocky terrain will hold the sun's heat and cause loose wet avalanches to become a concern by midday. They could be a problem in themselves, but they could also act as a trigger for slabs.
Avoid ice climbs exposed to steep rocky terrain on solar aspects during the middle of the day.Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.

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

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 2

Deep Persistent Slabs

Cornices could start to fail if they see a lot of sun. These kinds of large triggers could cause the deep layers to fail.
Be aware of the potential for full depth avalanches due to deeply buried weak layers.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely

Expected Size: 2 - 3.5