Avalanche Forecast
Regions: Jasper.
Good skiing can be found at higher elevations. Poor overnight freeze and rain/ wet snow will be of most concern on Monday.Approach below tree line terrain with extreme caution.
Weather Forecast
Monday:
Flurries.
Accumulation: 7 cm.
Alpine temperature: High 0 °C.
Ridge wind north: 10-30 km/h.
Freezing level: 2200 metres.
Tuesday:
A mix of sun and cloud.
Precipitation: Nil.
Alpine temperature: Low -9 °C, High -1 °C.
Ridge wind light to 15 km/h.
Freezing level: 2100 metres.
Snowpack Summary
Up to 10 cm of new snow above 2000 m with minimal wind effect overlies sun crust at all elevations and a melt-freeze crust up to 2100m on all aspects. Snow pack below 1700m is mostly wet due to steady warm temperatures and rain.
Avalanche Summary
Few natural loose wet avalanches observed at lower elevations in steep terrain on Sunday. No alpine observations due to poor visibility.
Confidence
Freezing levels are uncertain
Avalanche Problems
Loose Wet
Warm precipitation and cloud coverage will prevent strong overnight freeze until Monday night. Make sure to investigate the strength of surface crust in the late hours of the day.
- Daytime warming will weaken surface layers.
Aspects: All aspects.
Elevations: Treeline, Below Treeline.
Likelihood: Likely
Expected Size: 1 - 2
Wind Slabs
New thin, soft wind slab to be found in lees in the alpine.
- Use caution in lee and cross-loaded terrain near ridge crests.
Aspects: North, North East, East, North West.
Elevations: Alpine.
Likelihood: Unlikely - Possible
Expected Size: 1 - 2
Storm Slabs
New snow at tree line and lower alpine can be developing as a storm slab with warmer temperatures and minimal wind. Check how well the new snow is bonding to the old surfaces such as crusts.
- Watch for signs of instability such as whumphing and cracking.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1 - 2