Issued: Jan 7th, 2024 4:00PM
The alpine rating is Wind Slabs., the treeline rating is , and the below treeline rating is Known problems include
Seek out sheltered snow for better riding away from wind slab hazards. Start small and watch for signs of instability in case you encounter a pocket of buried surface hoar.
Observations in the region have been limited but the North Rockies field team observed rider triggerable wind slabs in Pine Pass on Friday. Check out the MIN.
If you go out in the backcountry, please consider sharing your observations on the Mountain Information Network (MIN).
Up to 30 cm of new snow with southerly winds has formed wind slabs on lee features at upper elevations. The new snow overlies a crust up to 1400 m on all aspects, but it may sit over a weak layer of surface hoar in sheltered areas.
Two additional layers of surface hoar can be found in the top meter of the snowpack at treeline. These layers are generally no longer a concern, the exception being shallow rocky areas at upper treeline.
The current snowpack has considerable variation in structure and depths across the region and is shallow for this time of year.
Increasing cloud in the evening or overnight. Southwest alpine wind increasing to 10 to 20 km/h.
Becoming mainly cloudy with trace amounts of new snow expected, flurries increasing overnight. Southwest alpine wind 20 to 30 km/h. Treeline temperature -10°C.
Cloudy with 5 to 15 cm of new snow expected, southwest alpine wind 20 to 40 km/h, treeline temperature falling to -14°C, cooling further overnight.
Clearing. Northwest alpine wind 5-10 km/h. Treeline temperature -20°C to -25°C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Be carefull around freshly wind loaded features.
- Carefully evaluate steep lines for wind slabs.
- Use ridges or ribs to avoid areas of wind loaded snow.
Rider triggerable wind slabs may still be found on lee features at treeline and above.
Aspects: North, North East, East, West, North West.
Elevations: Alpine, Treeline.
Valid until: Jan 8th, 2024 4:00PM