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Archived

Avalanche Forecast

Dec 1st, 2017–Dec 2nd, 2017
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Cariboos.

We currently have very limited snowpack observations within this region and it is critical to supplement this information with your own observations.

Confidence

Low - Due to the number of field observations

Weather Forecast

SATURDAY: Cloudy with flurries / Light southwesterly ridgetop winds / Freezing level around 500 mSUNDAY: Mostly sunny / Light to moderate westerly ridgetop winds / Freezing level valley bottom.MONDAY: Cloudy with isolated flurries / Light to moderate westerly ridgetop winds / Freezing level valley bottom.

Avalanche Summary

No new avalanches were reported in this region on Thursday. This may speak to a lack of observations rather than actual conditions. Please submit your observations to the Mountain Information Network (MIN).

Snowpack Summary

Up to 40cm of new snow has fallen in the past few days. At higher elevations, southerly winds (gusting strong at times) likely redistributed the new snow, forming wind slabs on lee features.Below the recent storm snow you may find a couple of crusts which formed as a result of last week's rain. That said, little is known about the reactivity of these crusts or the elevation bands at which you're likely to find them. A major feature in the snowpack is a crust which formed around November 11th and can be found approximately 120cm down at treeline elevations. The depth of the snowpack varies greatly with elevation. Recent reports suggest the average depth is 200+cm in the alpine, 100-180cm at treeline, and decreasing rapidly below treeline where the primary hazards are rocks, stumps, and open creeks. We currently have very limited snowpack observations within this region and it is critical to supplement this information with your own observations.

Avalanche Problems

Storm Slabs

Lingering storm slabs may still be reactive to human triggers in wind exposed areas at treeline and above.
The new snow may require several days to settle and stabilize.Be cautious as you transition into wind affected terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Persistent Slabs

Not much is known about the reactivity of a hard crust which lurks deep in the snowpack. This uncertainty warrants conservative terrain selection as an avalanche at this interface could be large and destructive.
Use conservative route selection, choose moderate angled and supported terrain with low consequence.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3