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Archived

Avalanche Forecast

Mar 2nd, 2014–Mar 3rd, 2014
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
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
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Jasper.

Expect the hazard to increase over the day Monday if forecasted snow amounts and wind materialize. Make terrain choices based on changing conditions.

Weather Forecast

The westerly flow is expected to bring snow and warmer temperatures though the night and leading into the week. Initial snow amounts are expected to be around 10cms for the S end of the forecast area Sunday night and through the day on Monday. A mod south wind could transport this snow and create a reverse loading pattern from the last wind event.

Snowpack Summary

We have a supportive mid-pack above 1,900m. A concerning weakness can be found consisting of decomposing surface hoar and or facetted grains. This may be 30-70cm down and the forecasted new snow could overload this layer and increase the hazard over the day Monday. Moderate winds have stiffened the surface snow in open areas above tree line.

Avalanche Summary

No new avalanches have been reported.

Confidence

Intensity of incoming weather systems is uncertain

Avalanche Problems

Storm Slabs

New snow is expected to come in steadily with south winds and may slowly overload this interface. Watch for a reverse loading pattern from the south to north aspects because of the shift in wind direction.
Caution in lee and cross-loaded terrain near ridge crests.Minimize exposure during periods of heavy loading from new snow, wind.

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

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 2