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Archived

Avalanche Forecast

Nov 28th, 2013–Nov 29th, 2013
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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.

Rocks, stumps, and crevasses still lurk beneath the shallow, early-season snowpack.

Weather Forecast

High overcast, light winds, and nil precipitation is forecasted for today. Freezing levels to rise to 1900m. Tomorrow and Saturday, we may see scattered flurries, with up to 5cm of accumulation, and light westerly ridge-top winds. Freezing level to drop to 1500m.

Snowpack Summary

Little change from yesterday, with continued settling of the snowpack, exposing more early season hazards. Sun crusts exist on steeper south/southwest aspects. Wind-pressed soft slab and facets overlay the November 12 surface hoar layer in tree-line and alpine areas. The surface hoar is down between 40-100cm at higher elevations.

Avalanche Summary

No new significant activity observed from previous 24 hours. Older crown-lines to size 2 were observed near the top of the Youngs Peak Headwall, likely 72+ hours old.

Confidence

Due to the number and quality of field observations

Avalanche Problems

Persistent Slabs

The widespread Nov 12 surface hoar layer is buried throughout Rogers Pass by variable layers (soft slab, facets, or a combination of the two). Caution in the alpine around steep planar or unsupported slopes that have not avalanched.
Avoid convexities or areas with a thin or variable snowpack.Dig down to find and test weak layers before committing to a line.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3