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Archived

Avalanche Forecast

Nov 9th, 2018–Nov 10th, 2018
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
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.

For those keen enough to brave the scratchy and sketchy approach and exit, good skiing exists in the alpine. Over the weekend, the potential for periods of sunshine and rising freezing levels may cause avalanche danger to rise.

Weather Forecast

A front is moving quickly through the province today before a ridge of high pressure builds again. 5-10 cm are expected today, with moderate SW winds and alpine temperatures around -8'C. Over the weekend expect a mix of sun and cloud, with isolated flurries. Freezing levels are expected to rise to 1700m on Monday and 2300m by Tuesday.

Snowpack Summary

Snow depths vary from 30cm at Rogers Pass, to 130-150cm in alpine areas. Sheltered areas at and above tree-line are holding unconsolidated snow, but pockets of wind-slab exist in immediate lee areas. A melt-freeze crust in the bottom 50cm of the snowpack is an early layer of concern, especially in the alpine on open, planar slopes.

Avalanche Summary

The last few days were quiet but earlier in the week several size 1.5-2 slabs from steep, N-facing terrain along the highway and up the Connaught drainage.

Confidence

Due to the number and quality of field observations

Avalanche Problems

Wind Slabs

Riders need to use caution when entering slopes and on cross-loaded alpine features. Ridge-top winds have created isolated wind-slabs that could be triggered by a human-load.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2