Avalanche Forecast
Issued: Nov 18th, 2015 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Loose Dry.
stephen holeczi,
Parks Canada
Summary
Weather Forecast
Cooler temperatures for Thursday and Friday with valley temps between -10 to -12 and alpine temperatures in the -18 to -25 range. Only trace amounts of snow are expected over the next 2-3 days with light to moderate W to NW winds.
Snowpack Summary
Essentially 2 major snowfall events in the past week has created the snowpack. The latest one from Tues threw down 30-50cm low density snow in most areas. There is a fairly supportive midpack, but inconsistent results are still being found within the storm snow, and in some circumstances, near the ground. HS at treeline is well over a meter.
Avalanche Summary
Avalanche control in Yoho, Kootenay and Sunshine produced mixed results. Most produced sluffing, or wind slabs to size 2.5. There were 2 examples of avalanches stepping to near ground layers, both on high/smooth alpine terrain where facets are likely more prominent. Lake Louise ski hill also used many explosives and had minimal results.Â
Confidence
Due to the number of field observations on Thursday
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine.
Likelihood
Expected Size
Loose Dry
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Nov 19th, 2015 4:00PM
