Avalanche Forecast
Issued: Apr 27th, 2013 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs, Loose Dry and Loose Wet.
Snow Safety,
Avalanche Canada
Sunday will see little overnight freeze and continued strong winds. Watch for touchy wind slabs and sluffing in bigger alpine terrain. SH
Summary
Weather Forecast
Continued strong westerly winds Sunday with slightly cooler temperatures (freezing levels 1500m overnight) and light flurries or showers West of the divide at lower elevations. Expect little freeze again below treeline. Sunday evening through to Monday expect 10-15cm of snow along the divide with freezing levels dropping throughout the day.
Snowpack Summary
Rain below 1900m with no freeze overnight. Strong to extreme SW winds (up to 133kmh on Mt. Bosworth) in the alpine have created pockets of wind slab on lee features.
Avalanche Summary
Limited observations Saturday due to poor visibility but no new avalanches reported
Confidence
Problems
Wind Slabs
Fresh wind slabs have likely formed in lee features . These new wind slabs will be sitting over previous wind slabs which can still be triggered in steeper terrain, especially where they overly a crust.
- Be careful with wind loaded pockets
Aspects: North, North East, East, South East, South, South West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Dry
Watch for heavy sloughing where powder overlies harder bed surfaces. In steep terrain, this could push you over a cliff or into a terrain trap.
- Be cautious of sluffing in steep terrain.
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Loose Wet
Rain below treeline and no overnight freeze means wet avalanches are possible. Steep, gullied terrain that still has enough snow to slide will be the features of most concern.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 28th, 2013 4:00PM
