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Avalanche Canada triley, Avalanche Canada

Lizard Range and Flathead Avalanche Forecast

Nov 30th, 2016 3:59PM

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.

Wind slabs may be lurking at higher elevations. Use extra caution on lee slopes at treeline and in the alpine.

Summary

Confidence

-

Weather Forecast

Cloudy overnight with moderate northwest winds and a chance of flurries. Chance of broken skies on Thursday with light westerly winds and temperatures between -5 and -10 in the alpine. Winds increasing to strong westerly on Friday with a few cm of new snow and rising freezing levels. Mostly clear on Saturday with strong northwest winds and alpine temperatures around -5 celcius.

Avalanche Summary

No new reports from this region.

Snowpack Summary

Early season snowpack observations are still very limited in the region but the threshold for avalanches has been exceeded at treeline and in the alpine. Reports suggest that the snow depth at treeline is typically 110-150cm but a report from the east side of region shows only 80cm at treeline. The snowpack tapers off drastically below treeline and below around 1700m there is not yet enough snow for avalanches. On Friday and Saturday, generally light amounts of storm snow and strong winds were reported to have formed wind slabs in leeward terrain at treeline and in the alpine. Limited reports suggest the crust from the middle of November is down 50-80cm and the crust from early November is down 80-110cm.

Problems

Wind Slabs

An icon showing Wind Slabs
Recent winds may have transported snow into wind slabs in the lee of southerly winds. Watch for pockets of wind slabs at higher elevations and immediately below ridge crests.
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, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Dec 1st, 2016 2:00PM