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Archived

Avalanche Forecast

Feb 12th, 2016–Feb 13th, 2016
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
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
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: Jasper.

Cooler temperatures are helping to stabilize what was a spring like week. Careful snowpack evaluation remains key.

Weather Forecast

Through the weekend, freezing level will hover around 1300m. Expect -3 to -12, light SW winds, 5cm new snow Friday night followed by light flurries. Maybe more snow on Sunday night and more on Monday.

Snowpack Summary

Temperatures are cooling helping to stabilize the snowpack from previous 3 days of warm temperatures. Slabs will persist at tree-line and above on North-Easterly aspects below ridge crests and cross-loaded terrain. The mid-pack is facetted, new snow interface is a concern along with a decomposed surface hoar down 40cm.

Avalanche Summary

No field patrol today but we suspect less natural activity today with cooler temperatures. Monday-Thursday's warm temperatures and sun induced afternoon natural avalanche creating numerous loose wet to sz 2 at lower elevations and some size 3 slabs in the alpine.

Confidence

Freezing levels are uncertain

Avalanche Problems

Persistent Slabs

Previously formed slabs now comprise the upper and mid-pack in many locations. Natural and human triggered avalanches are possible.
Watch for whumpfing, hollow sounds, shooting cracks or recent avalanches.Make observations and assess conditions continually as you travel.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3