Avalanche Forecast

Issued: Nov 28th, 2016 3:53PM

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

Avalanche Canada cam_c, Avalanche Canada

There is low confidence in this forecast due to limited observations. As always, and especially when confidence is low, it is essential to supplement this information with your own observations. and don't forget to post them to the MIN!

Summary

Confidence

-

Weather Forecast

Mainly cloudy with light flurries is expected for Tuesday, Wednesday and Thursday, before a more intense storm arrived Thursday evening. Relentless strong to extreme from  southwesterly alpine winds are expected for the entire forecast period. Gradual warming is expected throughout the forecast period, but freezing levels should remain below valley bottoms.

Avalanche Summary

There are no recent avalanche observations from this region. Due to the lack of regular observations, we cannot yet issue danger ratings for the region. If you are out in the mountains, please send us your observations and help us improve the forecast.

Snowpack Summary

Early season snowpack observations are still limited in the region but there is likely enough snow for avalanches at treeline and above. The average snowpack depth at treeline is reported to be around 60cm, and there's120cm or more in the alpine. Surface snow tends to be variable with low density powder in sheltered areas, and wind affected snow in exposed areas. In the north of the region at Shedin creek, the snow pillow is showing a historical low of 48 cm of snow on the ground. In the southwest at Tsai creek the snow pillow is showing near average snow depth. Recent strong southwest winds have likely formed wind slabs in leeward features at higher elevations. A series of crusts from early November were recently reported to be buried down 20-30cm.

Problems

Wind Slabs

An icon showing Wind Slabs
Recent winds may have re-distributed surface snow into wind slabs in the alpine on lee aspects. Watch for wind affected snow at higher elevations.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.Use caution in lee areas. Recent wind loading has created wind slabs.

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

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Nov 29th, 2016 2:00PM

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