Avalanche Forecast

Issued: Nov 27th, 2013 7:23AM

The alpine rating is below threshold, the treeline rating is below threshold, and the below treeline rating is below threshold. Known problems include Storm Slabs.

Avalanche Canada triley, Avalanche Canada

There is very little information available for this region at this time. The few reports we have suggest there is little snow across the region. I have removed the Danger ratings until we get more information.

Summary

Confidence

Poor - Due to the number of field observations

Weather Forecast

Overnight and Thursday: 5-10 mm of precipitation is expected to make its way inland from the system that is hitting the coast. Strong Southwest winds overnight should become more Westerly on Thursday. Freezing levels should rise to about 1000 metres during the storm.Friday: Mostly dry with moderate Westerly winds and very light precipitation in the afternoon.Saturday: Winds becoming light Southwest in advance of the Arctic cold front moving in from the North. Some light to moderate snow falls are expected just before the cold air arrives.

Avalanche Summary

No new reports of avalanches.

Snowpack Summary

No new reports, I have left this in from Tuesday. Report from Ashman Ridge that the height of snow at ridgetop 1600 metres elevation was 50 cm. There was a great deal of wind effect reported from this part of the region, resulting in pockets of snow that were about 75 cm deep and cornice development considered to be unusual for this area. The thin snowpack was considered supportive to the weight of skiers. The early season crust in this area was described as being right on the ground and contained to the surface roughness. The few reports we have received suggest there is little snow across the region. One operator is reporting 50cms of snow at 1100m. The region has seen its fair share of wind in the past week and spatial variability in snow depth likely exists. By and large, most of the region is below threshold except for where the wind may have re-distributed snow into pockets of wind slabs. Keep in mind these pockets of snow that may be enticing to ride are the same slopes that may be the most likely to slide.

Problems

Storm Slabs

An icon showing Storm Slabs
New storm snow may be reactive to human triggering in areas that have enough snow to slide.
The new snow will require several days to settle and stabilize.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Nov 28th, 2013 2:00PM