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Archived

Avalanche Forecast

Jan 14th, 2017–Jan 15th, 2017
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: Glacier.

Spotty wind slabs exist, watch for rising temperatures this afternoon.

Weather Forecast

The cold weather is being pushed east by a zonal flow from the Pacific. Expect A mix of sun and cloud today, temps slowly on the rise and light winds from the SW. On Monday we'll start to see precipitation, rising freezing levels and stronger winds! 30-50cm is forecasted from Monday to Thursday next week, with the FL possibly rising to 1500m

Snowpack Summary

The stagnant cold weather pattern has left behind quite a variable upper snowpack. In the Alpine wind slabs are present and or new low density snow, these sit on a variety of old surfaces, from hard windslab to faceted soft snow in protected areas. In Sheltered areas at and below tree line the upper snowpack is right side up.

Avalanche Summary

No new avalanches have been observed in the highway corridor since the 10th of January, where we observed wind slabs out of steep terrain to size 3. Small natural avalanches were observed in the back country during this cycle to size 1.5.

Confidence

Forecast snowfall amounts are uncertain on Monday

Avalanche Problems

Wind Slabs

Stubborn windslabs exist on alpine features(ridge-crests, cross-loading gullies) from mod SW winds. These slabs are variable in distribution so assess each slope independently. They will be most reactive on convex rolls and in unsupported terrain.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.Avoid convexities or areas with a thin or variable snowpack.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2