Archived

Avalanche Forecast

Feb 1st, 2015–Feb 2nd, 2015

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

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Regions: Sea To Sky.

Conditions have changed in the last few days. New winds slabs have increased the Avalanche Danger.

Confidence

Fair - Intensity of incoming weather systems is uncertain on Monday

Weather Forecast

Another pacific frontal system will bring up to 10cm of snow to the Coast on Monday. Lingering flurries are expected on Tuesday before a dry ridge of high pressure develops for Wednesday. Ridgetop winds are forecast to be moderate to strong from the southwest on Monday, and then decrease to light on Tuesday and Wednesday. Freezing levels should hover around 1000m for the forecast period.

Avalanche Summary

At the time of publishing this bulletin, no new avalanches had been reported. That said, I'm sure there was a good round of wind slab activity in response to Sunday's weather. With more snow on the way, I expect continued wind slab activity in lee terrain at treeline and above.

Snowpack Summary

Moderate amounts of new snow overlie a hard rain crust that exists up to at least 2100m. The new accumulations have been shifted by strong southwest winds into new wind slabs which may be especially reactive due to the underlying crust.Deeper snowpack weaknesses have become unreactive on account of the strong capping crust layer.

Avalanche Problems

Wind Slabs

New snow and strong southwest winds have formed new wind slabs in lee terrain. Wind slabs may be especially reactive due to underlying crusts.

Stay off recent wind loaded areas until the slope has had a chance to stabilize.>Be cautious as you transition into wind affected terrain.>

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 3