Avalanche Forecast
Issued: Mar 18th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Loose Dry.
Jeffrey Mitchell,
There is still potential for avalanches to be triggered at Tree Line elevations if there is a Wind Slab present. Proper judgement and assessment is still necessary even with the hazard rating of Low.
Summary
Weather Forecast
Saturday
Cloudy with scattered flurries.
Accumulation: 4 cm.
Alpine temperature: High -3 °C.
Ridge wind southwest: 15-35 km/h.
Freezing level: 1900 metres.
Sunday
Cloudy with sunny periods and isolated flurries.
Precipitation: Trace.
Alpine temperature: Low -12 °C, High -10 °C.
Ridge wind west: 20-40 km/h.
Freezing level at valley bottom.
Snowpack Summary
Parkers Ridge received up to 35cm between March 12-15 which buried a variety of surfaces including wind scoured surfaces and hard slabs. The new snow has formed a wind slab in the Alp and TL. Feb 13 interface down 20-50, present as Melt Freeze crust on solar aspects or DF interface on polar aspects with profiles showing resistant results..
Avalanche Summary
Tuesdays avalanche control highway 93 south produced up to size 1.5 wind slab averaging 30cm deep. A few size 1.5 dry loose observed in steep alpine terrain. Ski cut on an steep, unsupported feature in the Maligne range produced a size 2 on a hard wind slab.
Confidence
Problems
Wind Slabs
Sculpted terrain features widespread in the Alpine and Tree Line. Wind slabs have been reactive to ski cuts in some locations.
- Use caution in lee areas. Recent wind loading have created wind slabs.
- Be careful with wind loaded pockets while approaching and climbing ice routes.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Loose Dry
With up to 35cm of snow between Marc 12-15, loose dry avalanches could be an issue for ice climbers in tight gullies or steep cliffs above.
- Be careful of loose dry power sluffing in steep terrain.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 19th, 2022 4:00PM
