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Archived

Avalanche Forecast

Mar 5th, 2018–Mar 6th, 2018
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
1: Low
The avalanche danger rating below treeline will be low
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
1: Low
The avalanche danger rating below treeline will be low
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
1: Low
The avalanche danger rating below treeline will be low

Regions: Jasper.

Weather Forecast

Weather over the next week should remain in a relatively stable pattern. Cool overnights and temps rising to minus single digits, and a chance of scattered flurries with little accumulation.is expected. Temps and freezing levels will rise into the weekend, coupled with increased solar radiation, so expect to need some sunscreen by midday.

Snowpack Summary

Much of the regional snowpack is losing support and, facetting after two weeks of cold, dry weather. Wind slabs and extensive wind effect is found in all open areas. The upper snowpack is a 50 to 80 cm weakening slab, over the seasonally persistent instability.

Avalanche Summary

No new avalanche activity observed or reported.

Confidence

Avalanche Problems

Wind Slabs

Expect windslabs in the alpine and at treeline. The cold has reduced slab conductivity and the probability for long propagations but caution is still warranted on exposed terrain features.
Best conditions found on sheltered aspects.Watch for surface cracking and stiffer surface layers of snow.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Persistent Slabs

A cold, facetting, and structurally weak slab up to 80cm thick overlies faceted crystals (well developed in shallow areas), and areas with preserved surface hoar (at, and just above treeline).
Be wary of slopes that did not previously avalanche.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1.5 - 3