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Archived

Avalanche Forecast

Apr 18th, 2012–Apr 19th, 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
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
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

Regions: Jasper.

A change from the recent cloudy conditions to sunny skies may wake up snowpack weaknesses that have been dormant as of late. More caution is needed on sun exposed slopes at all elevations.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing or intensity of solar radiation is uncertain on Thursday

Avalanche Problems

Wind Slabs

Windslabs are present below corniced ridgelines. These slabs have not been reactive in the past week, however, warm temps and solar exposure may wake them up.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Loose Wet

Warmer temperatures and sunny skies will increase the likelihood these avalanches. These slides may trigger slab avalanches deeper in the snowpack, especially around convexities near treeline.

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

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Deep Persistent Slabs

This layer is now buried by a settled upper snowpack. Triggering of this layer is still possible especially from a thin spot.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 4