Sea To Sky

Wind slabs may remain reactive to riders at upper elevations. Expect deteriorating visibility in the afternoon as the next storm blows in.

High

• We have a good understanding of the snowpack structure and confidence in the weather forecast.

In the good visibility on Friday, evidence of a natural wind slab cycle up to size 2.5 was observed in the alpine from the mid-week wind event.

This MIN from Friday describes whumphing and remote-triggering a wind slab from 30 m away on a convex slope at treeline.

Explosive work on Thursday and Friday produced numerous size 2 cornice results.

New snow dusts extensively wind-affected surfaces at upper elevations and possibly sun crust on steep solar aspects.

Below 2100 m, a widespread crust is buried 20 to 60 cm deep. The snowpack below the crust is generally well settled and has no significant layers of concern.

Saturday Night
Partly cloudy. 30 km/h northwest ridgetop wind. Treeline temperature -8 °C.

Sunday
Mostly cloudy. 2 to 4 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Monday
Cloudy. 20 to 40 cm of snow. 70 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Tuesday
Cloudy. 30 to 75 mm of rain at treeline. 70 km/h southwest ridgetop wind. Treeline temperature 1 °C.

More details can be found in the Mountain Weather Forecast.

• Be alert to changing conditions throughout the day.
• Be careful as you transition into wind-affected terrain.
• Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.