Continuously monitor conditions as you move through terrain.
Storm slabs will likely be more reactive at higher elevations.
Rider triggerable storm slabs may still be found at higher elevations. The largest and most reactive slabs will likely be found on northerly aspects.
Wet loose avalanches are possible at lower elevations.
size 1 wet loose avalanches Below treeline were reported on Wednesday. We suspect more avalanche activity took place but observations are limited in this region.
If you are going out in the backcountry, please consider sharing your observations to the Mountain Information Network (MIN)
By early morning on the 20th another 5 to 15 mm of precipitation could have fallen. Below treeline the majority of this precipitation will fall as rain, saturating the upper snowpack. In the alpine most of this precipitation will fall as snow. This new snow will be accompanied by southerly winds likely forming deep deposits on northerly aspects.
In the alpine, an estimated 50 to 90 cm of snow sits above a thin crust. We are not concerned about this layer in this region
Snow depths at treeline vary across the region. Around 140 cm is reported in the Coquihalla and 85 cm near Manning Park.
Thursday NightCloudy with up to 15 mm of mixed precipitation. 50 to 80 km/h south ridgetop wind. Freezing level rising to 2000 m.FridayCloudy with 1 to 3 mm of mixed precipitation. 20 to 50 km/h south ridgetop wind. Freezing level around 2000 m.
Saturday
Mostly cloudy with up to 10 mm of mixed precipitation. 20 to 40 km/h south ridgetop wind. Freezing level rising to 1900 m.
Sunday
Mix of sun and cloud with trace amounts of mixed precipitation. 30 to 50 km/h south ridgetop wind. Freezing level around 1700 m.
More details can be found in the Mountain Weather Forecast.
