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Avalanche Forecast

Nov 11th, 2017–Nov 12th, 2017
Alpine
1: Low
The avalanche danger rating in the alpine will be low
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
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
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

Regions: Jasper.

Early season conditions exist with low snow cover and hidden hazards just lurking beneath the surface. Ski defensively.

Weather Forecast

Light flurries, clouds, -6 to -9 for Sunday. Monday may bring in a pulse of snow, 10-20cm, South to Southwest light to moderate winds, 1800 freezing level, and -3 to -6 degrees Celsius. Models are not agreeing on the snow amounts thus expect it to vary locally.

Snowpack Summary

Field data is limited. Below 1700m there is no significant snow. 2000m and above 30cm plus can be expected. Snow distribution varies with aspect, elevation, and wind exposure. Treeline and alpine gully features as well as some alpine slopes will be wind loaded. Its early season snowpack and ground features are marginally covered.

Avalanche Summary

No patrol Saturday. Friday Jasper to Sunwapta station patrol observed nothing new. Climbers should still remain vigilant as even triggering a small avalanche in a gully feature or above cliffs can have severe consequences.

Confidence

Forecast snowfall amounts are uncertain on Monday

Avalanche Problems

Wind Slabs

This is an early winter condition that exists in isolated pockets where the snow has drifted into pockets of wind slabs and the slope is steep enough to slide. Mainly a concern for ice climbers in steep gullies or walking above cliffs.
Avoid terrain traps, such as gullies, where the consequences of a small avalanche could be serious.Be careful with wind loaded pockets while approaching and climbing ice routes.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2