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Avalanche Forecast

Jan 10th, 2016–Jan 11th, 2016
Alpine
1: Low
The avalanche danger rating in the alpine will be low
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
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
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Sea To Sky.

It looks like one more mainly dry day before the snow returns. Avalanche danger will rise as new snow accumulates. How quickly this happens depends on how much snow and wind we see.

Confidence

Moderate - Intensity of incoming weather systems is uncertain on Tuesday

Weather Forecast

Monday: Increasing cloud with snow in the afternoon. The freezing level is around 800-1000 m. Ridge winds should increase to moderate from the S-SW. Tuesday: Periods of snow – 20-30 cm from Monday evening through Tuesday. The freezing level is around 1000 m. Winds are moderate to strong from the SW. Wednesday: Flurries ending early, then cloudy with sunny breaks. The freezing level is near 800 m and winds ease to light from the W-NW.

Avalanche Summary

No new avalanches were reported on Saturday. A few small natural and rider-triggered wind slab avalanches up to size 1.5 were reported on Thursday and Friday from steep lee features. 

Snowpack Summary

Up to 20 cm of dry snow sits on a variety of old surfaces including a melt-freeze crust on solar aspects in the alpine, smooth old snow on higher elevation lee slopes, and well-developed surface hoar in sheltered areas at treeline and lower elevations. This dry surface snow is capped by a sun crust on steep solar aspects or a fresh layer of surface hoar on sheltered and shady slopes. Variable winds have created thin soft wind slabs in immediate lee and cross-loaded terrain in alpine areas. The mid and lower snowpack is generally strong.

Avalanche Problems

Wind Slabs

Small wind slabs may be sensitive to rider triggering in steep and unsupported lee and cross-loaded terrain. Expect wind slabs to grow rapidly as soon as the snow and winds kick in again.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.>

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2