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Archived

Avalanche Forecast

Mar 17th, 2016–Mar 18th, 2016
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
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
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

Regions: Little Yoho.

Pay attention to solar warming as the sun comes out over the next few days. Watch for overhead hazard and falling cornices.

Weather Forecast

Sunny warm days and cold nights Friday and Saturday.

Snowpack Summary

40 - 60cm of recent, dry storm snow overlies a well settled mid and lower pack.

Avalanche Summary

No avalanches reported today.

Confidence

Avalanche Problems

Persistent Slabs

Now that the sun is higher in the sky, buried suncrust becomes more of a problem. Presently there are several crusts buried on S through E aspects, with 30-70 cm overlying them.

  • Dig down to find and test weak layers before committing to a line.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3

Cornices

Cornices are large and fragile right now. Numerous have been triggered by explosives and skiiers in the last few days and most have triggered slabs on the slopes below. Heads up as the sun destabilizes them further over the next few days.

  • Avoid slopes when the solar radiation is strong, especially if they have large cornices overhead.
  • Give cornices a wide berth when travelling on or below ridges.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 3