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

Avalanche Forecast

Nov 27th, 2011–Nov 28th, 2011
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
4: High
The avalanche danger rating at treeline will be high
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
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

Regions: Jasper.

Recent snowfall has increased the avalanche danger and will take time to stabilize - avoid avalanche terrain until the cooler temps arrive and strengthen the snowpack.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing of incoming weather systems is uncertain on Monday

Avalanche Problems

Storm Slabs

15-20cm of new snow fell on Sunday along with moderate to strong SW winds. Steady rain fell below 1400m. Widespread storm slabs will be very touchy until the arrival of colder temps later in the week.

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

Elevations: Alpine, Treeline.

Likelihood: Likely - Very Likely

Expected Size: 1 - 3

Wind Slabs

Gusty and variable winds have formed wind slabs on all aspects at upper elevations, especially in exposed areas. These slabs will be more sensitive to triggering with the latest storm snow.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely - Very Likely

Expected Size: 2 - 4

Deep Persistent Slabs

Early season wind slabs that sit above weak basal facets have received significant load with the recent wet and heavy snow. This new load has the potential to cause full depth releases and wide propagations.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 3 - 4