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Avalanche Forecast

Mar 29th, 2012–Mar 30th, 2012
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
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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
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.

15cm may arrive into Friday with a little more on Saturday plus slightly cooler temperatures and winds. Incrementally this may increase the danger rating particularly where slabs form on the slippery surface of previous formed melt-freeze crusts.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Friday

Avalanche Problems

Wind Slabs

Southwest winds for the past 4 days continue to build windslabs on Northerly aspects. More snow arriving will incrementally add to this problem. The new snow may be resting on a slippery crust from earlier sun effect particularly on solar aspects.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

The buried surface hoar layer 70-120cm down remains a concern in areas that have not avalanched. The layer is still being observed at treeline and below treeline locations yet layers are bridging it above. Cautious of shallow locations.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 2 - 4

Loose Wet

Cloud cover should be predominant the next few days reducing daytime heating. Still be cautious if the sun pokes out as activity will increase particularly on steep S or W aspect rock bluffs or gullies starting mid afternoon.

Aspects: North, North East, East.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 3