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Avalanche Forecast

Nov 24th, 2018–Nov 25th, 2018
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: South Columbia.

This forecast is based on limited field observations. Careful terrain selection is recommended while gathering more snowpack information.

Confidence

Low - Due to the number of field observations

Weather Forecast

SATURDAY NIGHT: Mostly cloudy, no precipitation / Light and variable windSUNDAY: Partly cloudy, sunny breaks / Light and variable wind / Freezing level rising 1000-1400mMONDAY: Periods of snow, accumulating 5-20 cm / Light to moderate south-southwest wind / Freezing level rising 1200-1500 mTUESDAY: Wet flurries / Light to moderate south-southwest wind / Freezing level 1600 m

Avalanche Summary

No recent natural avalanches have been reported. Explosives have triggered small slab avalanches in ridge top lee features. We currently have limited observations in this region. Please submit your observations to the Mountain Information Network (MIN).

Snowpack Summary

A surface hoar/sun crust layer is buried under 15-30 cm recent snow. The surface hoar is more prevalent in sheltered areas and at treeline and below; the crust is found in exposed alpine terrain and solar aspects. The snowpack is supported by an unreactive basal crust/facet layer 15-25 cm above the ground. The total snowpack depth varies from 110-160 cm in the alpine, with snowpack depth decreasing quickly with decreasing elevation. In many areas, the below treeline snowpack is below threshold.

Avalanche Problems

Storm Slabs

Slabs may be more reactive in wind-exposed terrain and areas where the new snow has a weak bond with the underlying surface layer.
Use caution on open slopes and convex rolls at treeline where buried surface hoar may be preserved.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2