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Archived

Avalanche Forecast

Nov 14th, 2019–Nov 15th, 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
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
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

Regions: Banff Yoho Kootenay.

Many early season hazards exist, related to thin snowpack coverage. Be on the lookout for wind slabs in lee areas in the alpine.

Weather Forecast

Mainly cloudy on Friday with isolated flurries throughout the day, with an alpine high of -3, 15-45 km/hr SW winds and a freezing level up to 1700m. Saturday will see ~5cm of snow and increasing winds. Sunday the storm intensifies bringing up to 20cm of snow, 20-75km/hr winds and a freezing level up to 2000m.

Snowpack Summary

10-20 cm of settled snow sits on the Nov 8 crust and a variety of old wind slabs in the alpine. The Nov 8 crust is present up to 2400 m. Faceting observed around the Oct crusts near the ground. Treeline snow depths range from 50-80 cm, and up to 110 cm wind loaded pockets in the alpine.

Avalanche Summary

No avalanches observed or reported on Thursday.

Confidence

Due to the number and quality of field observations

Avalanche Problems

Wind Slabs

Watch for wind slabs in lee areas in the alpine.

  • Use caution in lee areas. Wind loading could create slabs.
  • 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 - 1.5