Avalanche Forecast
Issued: Dec 4th, 2016 3:51PM
The alpine rating is Storm Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
-
Weather Forecast
MONDAY: Isolated flurries with possible accumulations up to 10 cm in the Coquihalla area and less in other areas, light south winds, alpine temperatures at -10.TUESDAY: Sunny, light north winds, alpine temperatures at -15. WEDNESDAY: Mix of sun and clouds, light north winds, alpine temperatures at -12.
Avalanche Summary
No recent avalanche observations have been submitted. Storm slabs may be very touchy in parts of the region that received the heaviest snowfall, such as the Coquihalla. In other parts of the region, storm slabs are most likely on wind loaded terrain features at higher elevations.
Snowpack Summary
On Saturday night, heavy snowfall brought up to 50 cm of new snow in the Coquihalla area, 25 cm around Manning Park, and 10 cm in the Duffey area. This new snow likely formed touchy storm slabs, especially on steep or wind loaded slopes. Below the recent storm snow you may find a layer of buried surface hoar which formed during last week's clear weather. This layer was reported to be well-developed in some parts of the Duffey area, although not much is know about its current size or distribution. Another layer of 3-5 mm surface hoar has been observed 60 cm below the surface in the Pemberton area and has produced easy snowpack test results. A thick crust can be found throughout the region in the mid-pack, down 70-100 cm at treeline elevations or deeper in the alpine. Although snowpack tests have shown the crust to be mainly unreactive, I'd expect increased reactivity with this layer in shallow, wind-affected alpine start zones.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 5th, 2016 2:00PM