Archived

Avalanche Forecast

Feb 5th, 2019–Feb 6th, 2019

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

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

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

Regions: Banff Yoho Kootenay.

Be prepared for the cold when recreating this week. Even a small mishap in the day can become critical in these temperatures.

Weather Forecast

An arctic ridge of high pressure will linger in the bulletin region for the remainder of the week. Temperatures will remain frigid, with evening lows down to -30. A temperature inversion has set in at higher elevations. Light winds, sunny skies and temperatures in the low negative teens will make the alpine the place to be.

Snowpack Summary

Wide spread wind effect above treeline has created wind slab on NE to SE aspects. At treeline elevations, up to 65cm of snow sits over the Jan.17 surface hoar. In shallower areas weak facets and depth hoar exist below the Dec 10 interface. In deeper snow packs this basal weakness is less pronounced.

Avalanche Summary

No new avalanches reported or observed today.

Confidence

Avalanche Problems

Wind Slabs

Wide spread wind effect from this weekend has left windslabs on NE to SE aspects. These slabs could be up to 70cm deep.

Be careful with wind loaded pockets.

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2