Avalanche Forecast

Issued: Apr 14th, 2012 4:21PM

The alpine rating is considerable, the treeline rating is moderate, and the below treeline rating is moderate. Known problems include Wind Slabs, Loose Wet and Deep Persistent Slabs.

Parks Canada a.l. horton, Parks Canada

Wind slab avalanches in the alpine are a concern on both NE and SW aspects due to changing wind directions.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing or intensity of solar radiation is uncertain on Sunday

Problems

Wind Slabs

An icon showing Wind Slabs
Slab avalanches to size 2 were observed on north aspects below corniced ridge lines. On Saturday, winds shifted to the NE, reverse loading SW slopes which likely have a well developed sun crust.

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

Elevations: Alpine.

Likelihood

Likely - Very Likely

Expected Size

2 - 3

Loose Wet

An icon showing Loose Wet
Widespread wet avalanche activity up to size 2 has been observed through out the forecast area. Rain saturated snow at lower elevations is failing at the ground. Pay close attention to freezing level elevations.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Likely

Expected Size

1 - 2

Deep Persistent Slabs

An icon showing Deep Persistent Slabs
Avalanches to size 2 have been observed on this layer on NE aspects initiated by small loose snow avalanches. These deeper layers can wake up unexpectedly on all aspects.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

2 - 4

Valid until: Apr 15th, 2012 4:00PM