Avalanche Forecast
Issued: Nov 25th, 2019 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs, Loose Dry and Storm Slabs.
Jasper Snow Safety,
Parks Canada
Caution Ice climbers as we head into a cold snap, Ice can become brittle and more fragile. Loose dry avalanches can pose a significant hazard if caught in the wrong place at the wrong time
Summary
Weather Forecast
Progressive cooling overnight and continues through the week. For more details: Avalanche Canada's, Mountain Weather Forecast.
Snowpack Summary
30cm new since Saturday in the ice fields area. This is sitting on a variety of surfaces depending on elevation and aspect. Surface hoar may be preserved in sheltered locations. The snow seems to be bonding well to previous surfaces at all elevations.
Avalanche Summary
An unusual avalanche today in closed ski hill terrain on a persistent layer. Steep previously controlled skiable terrain, 2 full burials no injuries.
Confidence
Problems
Wind Slabs
Ongoing moderate W winds redistributed 30cm new snow to lee features in open spaces.
- Be cautious as you transition into wind affected terrain.
- Use caution in lee areas. Recent wind loading have created wind slabs.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Dry
Cooling temps will weaken the surface snow. Caution to ice climbers in confined and gully features.
- Be aware of party members below you that may be exposed to your sluffs.
- The volume of sluffing could knock you over; choose your climb carefully and belay when exposed.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Storm Slabs
Though proving less reactive to natural loads this interface has yet been tested much underfoot. Tread cautiously, coming cool temps should tighten the bond over the old snow.
- If triggered the storm slabs may step down to deeper layers resulting in large avalanches.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Nov 26th, 2019 4:00PM
