South Coast

Rain and warm temperatures make wet avalanches likely.

Conservative terrain selection is essential.

We expect avalanche activity to continue with rain-on-snow and warming.

On Sunday several storm slab avalanches were reported, size 1 and 2. On Saturday at Grouse Mountain, numerous size 2 storm slabs were triggered remotely, up to 50 cm deep.

Thanks for sharing your observations to the MIN.

5 to 15 mm of rain is expected to fall up to 2500 m. This falls on up to 50 cm of recent snow redistributed by southwest winds at upper elevations, and an already moist snowpack at lower elevations.

This overlies up to 1.5 m of previous settling storm snow, which was reportedly well-bonded to an underlying, supportive crust, that is now expected to be 180 to 250 cm deep.

Below this, the snowpack is well-settled and strong.

Monday Night

Cloudy with 10 mm, falling as snow above 2000 m. 20 to 40 km/h southwest ridgetop winds. Treeline temperature 3 °C.

Tuesday

Cloudy with up to 5 mm, falling as snow above 2500 m. 30 to 50 km/h southwest ridgetop wind. Treeline temperature 8 °C.

Wednesday

Mostly cloudy with trace precipitation amounts. 40 km/h south ridgetop winds. Treeline temperature 9 °C.

Thursday

Cloudy with 30 to 40 mm, falling as snow above 1500 m. 40 to 60 km/h southeast ridgetop winds. Treeline temperature 3 °C.

More details can be found in the Mountain Weather Forecast.

• Make conservative terrain choices and avoid overhead hazard.
• Keep in mind that the high density of wet avalanches can make them destructive.
• Use extra caution for areas that are experiencing rapidly warming temperatures for the first time.