Avalanche Forecast
Issued: Mar 13th, 2022 4:00PM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeCarefully assess your line for wind slab before committing to it.
Summary
Confidence
High - We have a good understanding of the snowpack structure and confidence in the weather forecast
Weather Forecast
Sunday night: flurries bringing up to 5 cm of new snow. Light to moderate southwest winds and a low of -3 at 1800 m.
Monday: light flurries bringing up to 5 cm of snow . Light southwest winds and freezing levels rising to 1800 m.
Tuesday: cloudy with flurries bringing up to 5 cm of snow . Light southwest winds and freezing levels rising to 2000 m.
Wednesday: a mix of sun a cloud with light flurries bringing trace amounts of snow. Light southwest winds and freezing levels rising to 1700 m.
Avalanche Summary
On Saturday several slab and loose dry avalanches up to size 1.5 were reported through out the region. Several small cornice failures were also reported. Avalanche activity was generally at treeline and on north and east aspects.
ON Friday ski cutting produced several slab avalanches up to size 2. These avalanches were wind loaded features on northerly aspects and all failed on persistent weak layers from February.
Snowpack Summary
Wind slab could be found on north and east aspects at treeline and above in exposed terrain. Up to 10 cm of recent snow sits over a variety of surfaces including a sun crust on solar and facets. . Moist snow could be observed at low elevations.
The late February layer is down 30 to 50 cm . This layer consists of a crust on solar aspects and all aspects at lower elevations. This layer presents as facets on northerly terrain and surface hoar in sheltered treeline features.
A layer of surface hoar from late January has not produced recent avalanche activity but it can still be identified 40-50 cm deep near Golden.
Terrain and Travel
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Wind slabs may be poorly bonded to the underlying crust.
Problems
Wind Slabs
Wind slab could be found on north and east aspects in exposed treeline and above. Sensitivity to triggering is greatest where wind slab has formed over a crust.
Aspects: North, North East, East, South East, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 14th, 2022 4:00PM