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Archived

Avalanche Forecast

Dec 10th, 2018–Dec 11th, 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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
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
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Jasper.

The timing and intensity of this storm is still uncertain. Be aware of changing conditions through the day and expect the avalanche hazard to increase.

Weather Forecast

A series of cold fronts embedded in a north westerly flow will bring precipitation to the forecast region this week. The first system is expected to arrive Tuesday with 10-15cm of snow. Moderate North West winds will be associated with this front. Click here for a detailed mountain weather forecast from Avalanche Canada

Snowpack Summary

Incoming new snow will overlay a variaty of high pressure surface conditions such as facets, isolated surface hoar ,crusts and windslabs. The Oct 25th crust can be found as much as 30cm off the ground and likely encountered between 1800-2,700m. The snow cover below treeline is thin.

Avalanche Summary

No new avalanches observed today during a road patrol down highway 93. Remember to share the conditions found on your trip this week with Avalanche Canada's, Mountain Information Network

Confidence

Avalanche Problems

Deep Persistent Slabs

Although currently dormant, it would be wise to assess the strength of the interfaces above & below the October 25 crust before entering committing lines. This layer exists on most skiable slopes.
Ride slopes one at a time and spot for your partners from safe locations.Watch for whumpfing, hollow sounds, and shooting cracks.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1.5 - 2.5

Storm Slabs

Forecasted snow values will overlay a variety a weak surface forms providing a poor bond at the new snow interfaces. The timing and intensity of this storm is still uncertain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2