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

Avalanche Forecast

Jan 9th, 2019–Jan 10th, 2019
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
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
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Glacier.

Cornices should be given a wide berth as per our usual safe traveling habits. Be wary of wind slabs near ridge lines and shallow snowpack areas.

Weather Forecast

A weak Pacific storm is tracking across BC, dropping another 5-10cm today at Rogers Pass; Freeing Levels will rise to 1300m and the winds will be moderate with strong gusts from the SW. We should get another 10cm tonight, and another 5cm on Thursday. Freezing levels will stay high for the next few days.

Snowpack Summary

Another 10cm of new snow buries previous low-density storm snow in sheltered locations at TL and wind slabs in isolated areas in the Alpine. The January 2nd interface/thin freezing rain crust is buried approx 90cm beneath the surface. The Nov 21st interface is now buried 1m+ in shallow areas and over 2m in deeper spots.

Avalanche Summary

A skier accidental size 3.5 was triggered on the up track to Camp West yesterday afternoon, see the MIN report here. The crown was 40cm deep where triggered and grew to over 1m in the deeper spots. Width of the crown is well over 100m and ran for over a kilometer!

Confidence

Avalanche Problems

Wind Slabs

Continued moderate winds formed winds slabs in the alpine and exposed ares at tree line. Winds were out of the NE, reverse loading ridge tops where you may not expect to find regular wind slabs.
Dig down to find and test weak layers before committing to a line.If triggered the wind slabs may step down to deeper layers resulting in large avalanches.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Persistent Slabs

The November 21st interface may be the culprit for the skier accidental size 3.5 yesterday in Camp West. This problem woke up with the recent rapid loading from extreme winds, and significant new snow in January.
Caution on steep solar aspects where the snowpack is thin and or cross loaded.

Aspects: South East, South, South West, West, North West.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 2.5 - 3.5