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Archived

Avalanche Forecast

Mar 14th, 2014–Mar 15th, 2014
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Jasper.

Our weather forecast models are calling for close to 25cm of snow starting on Saturday night through into Monday morning in the Icefields area.

Weather Forecast

Our forecast models are calling for heavy snowfall in the Icefields area starting on Saturday evening . This combined with moderate to strong south westerly winds and relatively warm conditions should lead to an increase in the avalanche hazard.

Snowpack Summary

Very strong winds and mild temperatures earlier in the week have led to touchy slab conditions, particularly at tree line. Good skiing can still be found in sheltered locations but care should be taken in selecting your line.

Avalanche Summary

Field team remotely triggered several avalanches in the Parker Ridge and Hilda Creek area on Wednesday. These stiff slabs were easily triggered from adjacent slopes and combined with extensive whumphing highlights the unstable nature of the snow at treeline in certain locations. 

Confidence

Avalanche Problems

Wind Slabs

The avalanche cycle in the alpine has eased from earlier in the week but we will see it ramp up with more snow on Saturday night. This loading pattern is looking perfect for increasing the size  and instability of existing cornices.
Use caution in lee areas. Recent wind loading have created wind slabs.If triggered the wind slabs may step down to deeper layers resulting in large avalanches.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 3

Persistent Slabs

A field team in the Icefields area on Wednesday remotely triggered several slab avalanches and experienced extensive whumphing at tree line elevations. Care is needed as you navigate slopes in this elevation band.
Avoid steep lee and cross-loaded featuresBe careful with wind loaded pockets while approaching and climbing ice routes.

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

Elevations: Alpine.

Likelihood: Likely

Expected Size: 1 - 2