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Archived

Avalanche Forecast

Feb 25th, 2014–Feb 26th, 2014
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Banff Yoho Kootenay.

The current weather pattern is stable. However, judicious decision making is still crucial to navigate through current conditions safely.

Weather Forecast

A very slight warming trend is expected to affect the forecast region starting tomorrow, however, it is not expected to be warm enough to affect the hazard rating significantly. Otherwise little change is expected.

Snowpack Summary

30-40cm of snow sit on top of Feb10th layer of facets, sun crust and surface hoar. Field tests continue to show an easy to moderate sudden collapse at this interface. Some isolated wind slabs are present in the alpine. If triggered these wind slabs could step down to the Feb 10th interface.

Avalanche Summary

Evidence of a major cycle (occurring 72 hours ago) is still visible throughout the forecast region. However, no new avalanches were observed of reported today.

Confidence

The weather pattern is stable

Avalanche Problems

Persistent Slabs

Snowpack tests on this layer today produced easy results. Despite the easy results no avalanche activity was noted. This is a layer to approach cautiously over the next few days.
Avoid open slopes with any steepness over 30 degrees.Avoid unsupported slopes.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Wind Slabs

This layer is becoming less reactive. However, be observant of lee areas and how the layer may react at a local level.
Use caution in lee areas in the alpine and treeline. Recent storm snow has formed touchy slabs.If triggered the wind slabs may step down to deeper layers resulting in large avalanches.

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 3