The storm is expected to taper off Monday night, resulting in variable snowpack conditions.
Expect rapid changes as you travel through different elevations.
Ongoing stormy weather has likely built storm slabs, which can be more reactive in leeward terrain. Forecast precipitation (rain or snow) remains particularly uncertain with respect to expected freezing levels.
As the surface snow becomes wetter, wet loose avalanches will be easy to trigger and may, in turn trigger larger storm slabs with serious consequences.
No recent avalanches have been reported, but observations are very limited in this region.
If you're heading out into the backcountry, please consider sharing your observations on the MIN.
30 to 45 mm of rain has fallen at lower elevations, while heavy wet snow may have accumulated at upper elevations. Exposed terrain has been highly wind-affected by southwesterly winds.
This builds upon previous storm slabs, which currently overlie older layers and a thick melt-freeze crust down 50 to 60 cm.
Total snowpack depths range from around 80 to 150 cm deep at treeline, and diminish rapidly at lower elevations.
Check out this great MIN for recent observations off the Coquihalla.
Monday Night
Cloudy. 15 to 25 mm of rain or wet snow at upper elevations. 60 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 2000 m lowering to 1500 m.
Tuesday
Cloudy. 5 to 15 mm of rain expected late afternoon. 50 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1600 m rising to 2200 m at night.
Wednesday
Cloudy. 10 mm of rain or wet snow at upper elevations. 50 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 1800 m.
Thursday
Mostly cloudy. 50 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 1800 m.
More details can be found in the Mountain Weather Forecast.
