Avalanche Forecast
Regions: Coquihalla, Harrison-Fraser, Manning, Sasquatch, Skagit, Stave.
Adjust plans based on observed conditions.
Localised areas may see light snowfall overnight, watch for small slabs building near ridgelines.
Confidence
Low
Avalanche Summary
Reports have been very limited in this region. Observations of large avalanche activity from the recent warm up have been reported this week, including a cornice trigger on Thar Peak and wet debris reported from Cheam Peak (photos below).
Moving forward, avalanche activity is expected from wind loaded features in areas that have received fresh, dry snow.
Please consider sharing your observations on the MIN.
Snowpack Summary
Up to 20 cm of settling snow sits over wet or crusty surfaces. On all but high north-facing alpine slopes, the upper snowpack is wet. Below 1800 m, it has melted substantially making approaches challenging.
Two persistent weak layers are buried within the upper 2 m of the snowpack. Avalanche activity is thought to be unlikely on these layers. However, large triggers like cornices may produce avalanche activity in shallow, rocky start zones.
Otherwise, the snowpack is generally well-settled and strong.
Weather Summary
Tuesday Night
Cloudy, with flurries delivering localised amounts up to 10 cm. . 20 to 30 km/h west ridgetop winds. Freezing level 1000 m.
Wednesday
Cloudy, with flurries delivering localised amounts up to 10 cm. 10 km/h variable ridgetop winds. Treeline temperature -3 °C. Freezing level 1400 m.
Thursday
Clear skies. 30 to 40 km/h northeast ridgetop winds. Treeline temperature -2 °C. Freezing level 1600 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Be alert to conditions that change with elevation, aspect, and exposure to wind.
- Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
- Pay attention to cornices and give them a wide berth when traveling on or below ridges.
Avalanche Problems
Wind Slabs
Watch for pockets of wind affected snow near ridgelines. Slabs likely sit over a crust, increasing reactivity.
Aspects: North, North East, East, West, North West.
Elevations: Alpine.
Likelihood: Possible
Expected Size: 1 - 2