Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Nov 30th, 2013–Dec 1st, 2013
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
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
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: South Coast.

Sunday's posted avalanche danger ratings are an average for the region. Actual avalanche danger may be HIGH in the south of the region where heavy snowfall is forecast.

Confidence

Fair - Forecast snowfall amounts are uncertain on Sunday

Weather Forecast

Sunday: Moderate snowfall with heavy accumulations forecast for the south of the region (Coquihalla, Alison Pass) / Strong southwest winds / Freezing level at about 1300mMonday: Mix of sun and cloud / Moderate west winds / Freezing level at valley bottomTuesday: Clear skies / Light north winds / Alpine temperatures of about -18.0

Avalanche Summary

There is no new avalanche activity to report. I would expect a round of storm slab activity with weather forecast for Sunday.

Snowpack Summary

Reports suggest there is about 50cm of snow at 1600m in the Duffy Lake area, and about 100cm at the same elevation on the Coquihalla. Terrain below treeline is reported to be mostly below threshold.A developing storm slab now overlies a generally well settled snowpack. Closer to the base of the snowpack you may find a few crusts which may have associated facets at higher elevations. Observers are not identifying any of these as cause for concern at this time, although they might be worth exploring.

Avalanche Problems

Storm Slabs

New snow and wind will create reactive and potentially destructive storm slabs. Watch for increased triggering in wind affected terrain.
Avoid all avalanche terrain during periods of heavy loading from new snow, wind, or rain.>Stay off recent wind loaded areas until the slope has had a chance to stabilize.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 4