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Archived

Avalanche Forecast

Nov 13th, 2017–Nov 14th, 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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Glacier.

Recent snow accumulation, warming temps and forecasted increasing winds promoting a formation of a storm slab.Early season hazards are lurking below the snow surface, ski / ride cautiously.

Weather Forecast

Snow today with accumulation up to 12cm by this evening. Alpine high of -2 with a rising freezing level to 1800m. Winds are forecasted to pick up over the day, 20km/hr gusting to 60km/hr from the south. Light snow to continue through Monday night and into Tuesday with another 25cm on Wednesday.

Snowpack Summary

10cm overnight, 25cm now covering the Nov 9 SH (spotty in distribution, hard to find), 35-50cm over the Halloween crust at treeline. The crust sits on 50-70cm of mixed forms and for the time being is well bonded. The lower snowpack is a 20cm layer of melt frozen crust. Snowpack is 90-130cm above 1900m.

Avalanche Summary

No natural or rider triggered avalanches have been reported.

Confidence

Intensity of incoming weather systems is uncertain on Monday

Avalanche Problems

Storm Slabs

25cm of storm snow now covers the Nov 9 SH (reported up to 20mm at TL, but not found in recent snow profiles). Warming temps and increasing south winds will promote formation of a storm slab. Keep a keen eye out for changing conditions over the day.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2