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Archived

Avalanche Forecast

Nov 17th, 2016–Nov 18th, 2016
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
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
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

Regions: Jasper.

New low density snow came in with little wind leaving loose snow on ledges and in gullies. This will potentially impact climbers.

Weather Forecast

Light flurries and no significant snow now to Monday. Friday expecting sunny ways and winds remain light Westerly to Southwesterly. Temperatures will range -5 to -15.

Snowpack Summary

20cm of low density storm snow sits on top of a 10cm thick laminated crust at tree line, below the crust is 20-30cm of large grain snow to ground. Pockets of wind slab may exist in the alpine and resting on the crust up to 2600m. Below tree line is un-skiable due to lack of snow. Early season conditions exist at all elevations.

Avalanche Summary

Thursday's avalanche control initiated 1 sz 1 on parkers slabs. Ski party released a small cornice with no results on Parkers Upper Ridge. Banff NP reported a near miss Tuesday with an iceclimber taking a 300m ride in a size 2 slab. This is noteworthy to remain vigilant where localized winds can form slabs.

Confidence

Avalanche Problems

Wind Slabs

Isolated pockets of wind slab below ridge line in the Alpine is buried by 20cm of recent storm snow.
Use caution in lee areas. Wind loading could create slabs.Early season hazards such as rocks, trees and stumps are still visible.

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2