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Archived

Avalanche Forecast

Nov 18th, 2011–Nov 19th, 2011
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
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

Regions: Kootenay Boundary.

This bulletin is based on limited data. Local variation in conditions and danger levels are likely to exist. To produce more accurate forecasts, we need information. Please send an email to [email protected].

Confidence

Poor - Due to limited field observations

Weather Forecast

Saturday & Sunday: Cool and dry, with temperatures reaching -10 and Easterly winds easing to calm. No precipitation. Monday: Clouds developing with a chance of flurries later in the day. Winds turn Westerly but remain light.

Avalanche Summary

Observations are extremely limited at this time. No new avalanches have been reported.

Snowpack Summary

Up to 15cm of new snow has fallen in the last 24hrs. Snowpack depths are likely in the 60-80cm range at about 1600m and about 125cms at 2000m. In the upper snowpack, windslab and storm snow instabilities exist within previous accumulations of up to 80cms+. Watch for the possibility of reverse loading with the recent Easterly winds. There's bound to be variability throughout the region and one slope/mountain/drainage may differ significantly from the next. A conservative approach combined with careful investigation of local conditions is advised until we get a better understanding of conditions.

Avalanche Problems

Wind Slabs

Variable winds have created the potential for windslabs on all aspects.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3