Sea To Sky

Assess local conditions carefully, as new snow accumulates throughout the day, both the likelihood and size of avalanches will increase.

High

• The snowpack structure is well understood.
• We are uncertain about forecast snowfall amounts.

On Sunday, widespread wind slab avalanche activity up to size 2 was reported, primarily on northerly alpine terrain.

Cooler temperatures should decrease the reactivity of wind slabs formed over the weekend. However, new snow and wind could form fresh slabs at the surface.

Small amounts of new snow are accumulating on recently wind-affected storm snow at treeline and above, and on crusty surfaces at lower elevations. A crust from last weekend’s rain exists up to approximately 2000 m, becoming thin or absent at higher elevations.

The mid and lower snowpack are generally well settled with no significant concerns at this time.

Check out this MIN report from the Spearhead Glacier area for more details.

Monday Night
Mostly cloudy. 2 to 10 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -9 °C.

Tuesday
Cloudy. 15 to 25 cm of snow, with the highest amounts forecast for areas to the south of the region. 40 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Wednesday
Mostly cloudy. 10 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Thursday
Mostly cloudy. 10 to 15 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

• Watch for fresh storm slabs building throughout the day.
• Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
• Avoid areas where the snow feels stiff and/or slabby.
• Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.