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Avalanche Forecast

Apr 5th, 2012–Apr 6th, 2012
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Jasper.

Loose wet avalanches may start by noon depending on the sun. The Feb14 surface hoar is also buried 70-120cm down but its distribution is uncertain. Large avalanches could occur in isolated areas. Chances of cornice failures is also increasing.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable

Avalanche Problems

Loose Wet

The sun is expected Friday into Sunday and it packs a punch. Depending on variables such as overnight temperatures, previous day temperatures, cloud cover, wind cooling effect, loose wet avalanches can occur rapidly. Expect activity of this nature.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Deep Persistent Slabs

This layer can wake up with daytime heat. There are reports of large avalanches to the South of us plus skiers at the Icefields triggered a size 3 last Sunday from a shallow area on the surface hoar. Investigate for this weakness before committing.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 4

Wind Slabs

Wind slabs exist lee aspects at treeline and alpine locations. Recent winds were Northerly so watch for reverse loading. No natural avalanches have been noted on this layer but bonds have not been tested.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3