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Archived

Avalanche Forecast

Apr 3rd, 2012–Apr 4th, 2012
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
3: Considerable
The avalanche danger rating below treeline will be considerable
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
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

Regions: Jasper.

A snowfall warning has been issued for Saskatchewan crossing and South starting late Tuesday night with precipitation into Thursday. An intense spring storm from NW U.S. may produce 10-25cm which may start out as rain before turning to snow.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain on Wednesday

Avalanche Problems

Wind Slabs

Moderate to strong variable direction winds continue to build slabs on lee slopes. No avalanches have been noted on this layer but bonds have not been tested. Another 10-25cm may arrive Wednesday into Thursday adding to this layer.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3

Deep Persistent Slabs

This layer appears to be waking up as the snowpack absorbs heat. There have been numerous reports of large avalanches especially to the south of us. Triggering is more likely from shallow areas on the slope. Easy time to be caught off guard.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 2 - 4

Loose Wet

The snowpack will remain warm overnight with the possibility of rain on Wednesday eventually turning to snow. Expect avalanche activity at lower elevations.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2