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Archived

Avalanche Forecast

Nov 27th, 2014–Nov 28th, 2014
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Waterton Lakes.

A slow start to the season in the far South! With the 30cm we had at Little Prairie now becoming rain soaked, it is probably best not to bring out the skis just yet. Regular Avalanche Bulletins will begin December 4rth.

Weather Forecast

We are expecting a quick plunge into the deep freeze Saturday with the passage of  a powerful cold front late Friday. The freezing level looks like it will stay high until this occurs bringing up to 35cm above treeline and likely depositing about 20 cm over crusts when everything freezes. Strong Westerly winds can be expected with this feature.

Snowpack Summary

We are well below normal values for this time of the year with 30cm at Little Prairie. Above treeline the snowpack is reaching threshold values in only isolated locations with accumulations that began mid October. Warm periods have created crusts through November. Today's rain looks to have soaked to the snow to about 2100m.

Avalanche Summary

The rain has caused many very small loose wet events at treeline.

Confidence

Avalanche Problems

Storm Slabs

Be aware that the new snow is not likely to bond well to the isolated pockets of snow that can be found tree line and above. Winds will help create slab conditions.
The new snow will require several days to settle and stabilize.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2