Avalanche Forecast
Regions: Coquihalla, Harrison-Fraser, Manning, Sasquatch, Skagit, Stave.
Avalanches are possible on steep alpine slopes, especially if the sun comes out.
Confidence
Moderate
Avalanche Summary
Reports have been limited in this region. Last weekâs warmup triggered large avalanches, including a cornice fall on Thar Peak and wet debris on Cheam Peak (photos below).
Small loose wet avalanches have been observed in recent days and will likely continue during periods of sun.
Snowpack Summary
Expect wet and moist surfaces on sun-exposed slopes. 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
Wednesday Night
Cloudy with 0 to 1 cm of snow. 20 km/h northwest ridgetop wind. Treeline temperature -5 °C.
Thursday
Mix of sun and cloud with 0 to 2 cm of snow above 1500 m. 20 km/h northwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1500 m.
Friday
Sunny. 10 km/h south ridgetop wind. Treeline temperature +4 °C. Freezing level 2200 m.
Saturday
Mostly sunny. 20 km/h southwest ridgetop wind. Treeline temperature +6 °C. Freezing level 2600 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.
- Pay attention to cornices and give them a wide berth when traveling on or below ridges.
- Limit exposure to steep, sun exposed slopes, especially when the solar radiation is strong.
Avalanche Problems
Wind Slabs
Watch for wind-affected snow along ridges. Periods of sun could trigger small avalanches on steep slopes.
Aspects: All aspects.
Elevations: Alpine.
Likelihood: Unlikely - Possible
Expected Size: 1 - 2