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Archived

Avalanche Forecast

Jan 7th, 2018–Jan 8th, 2018
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
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
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

Regions: Jasper.

Incoming new snow will improve the skiing somewhat, hopefully without overloading the weak interfaces left in the wake of the December drought.

Weather Forecast

Returning to a more normal thermal structure, milder air in the valleys and colder air aloft. A Westerly flow aloft will bring a series of Pacific weather systems through our area for the next few days.Monday: Flurries. Accumulation: 5-10 cm. Alpine temperature: Low -8 °C, High -4 °C. Ridge wind Light SW. Freezing level: 1500 metres.

Snowpack Summary

Exposed areas have pockets of wind slab covering variable drought interfaces - facets, surface hoar, sun and wind crusts. The upper snowpack is facetted and sugary in sheltered areas. The mid snowpack is generally supportive. Two buried crusts, one mid snowpack and one near the base, have the potential to become reactive with future loading.

Avalanche Summary

No new avalanches observed or reported.

Confidence

Forecast snowfall amounts are uncertain

Avalanche Problems

Wind Slabs

Several layers of wind slab exist from multiple wind events - reactivity may vary from site to site.
Approach steep lee and cross-loaded slopes with caution.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Loose Dry

Main concern is for weak, unconsolidated snow on steep rocky features as well as areas in the alpine where a small sluff can build mass.
Be cautious of sluffing in steep terrain.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 2