Issued: Jan 14th, 2024 4:00PM
The alpine rating is Wind Slabs., the treeline rating is , and the below treeline rating is Known problems include
Old wind slabs may be difficult to trigger but could still be reactive to riders. Seek out areas with soft snow on the surface that are sheltered from the wind.
North winds early last week have driven a natural windslab cycle in mostly south facing terrain. Avalanches averaged between size 1-2 with only a few size 2.5 avalanches reported.
This activity has tapered off and no new avalanches have been reported over the weekend.
Last week's strong northerly winds created wind slabs in exposed areas at treeline and above on south and westerly faces.
10-20 cm of snow fell in the region last week, adding to about 20-30 cm of older storm snow. Collectively, this snow sits on a crust up to 1400 m - 1900 m. In parts of the Cariboos, this snow may also overlie a weak layer of surface hoar.
Two more layers of surface hoar may be found buried between 90 and 150 cm at treeline. The likelihood of triggering these layers is low, but is most likely in shallow rocky areas at upper treeline.
The current snowpack is shallow and variable in structure throughout the region.
Clear, with no new snow, northwest alpine wind 20-50 km/h, treeline temperature high -28 °C.
Mix of sun and cloud, with no new snow, west alpine wind 20-50 km/h, treeline temperature high -20 °C.
Mostly cloudy with up to 5 cm of snow, variable alpine wind 20-30 km/h, treeline temperature -16 °C.
Partly cloudy with up to 5 cm of snow, east alpine wind 40-70 km/h, treeline temperature -18 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
- The best and safest riding will be on slopes that have soft snow without any slab properties.
Recent winds have built slabs at and below ridgetops in atypical areas. These slabs are likely to be more reactive where they overlie a weak layer of surface hoar and/or a crust.
Aspects: North East, East, South East, South, South West, West.
Elevations: Alpine, Treeline.
Valid until: Jan 15th, 2024 4:00PM