Sea To Sky

Avalanche danger has decreased, however human triggering remains possible.

Continue to practice safe travel techniques, limit exposure to overhead hazard to one person at a time.

Moderate

• We are uncertain due to the track and intensity of the incoming weather system.
• The snowpack structure is well understood.

On Wednesday around Whistler, ski cutting produced a few small (size 1) storm slab avalanches.

On Tuesday around Whistler, a few large (size 2-2.5) natural cornice falls were again reported in the alpine.

On Monday around Whistler, a few large (size 2-2.5) natural cornice falls were reported in the alpine.

Also, numerous small, dry and wet loose avalanches were reported on steep slopes. These were either triggered by the sun, or purposely triggered by humans.

Up to 20 cm of new snow has accumulated at treeline and above. Moderate South or Southwest winds will make deeper, denser deposits in leeward terrain.

This falls on generally wind-affected snow in much of the alpine and open treeline, a breakable crust on steep slopes that usually face the sun, and dry, loose snow in sheltered, shaded areas.

60 to 90 cm of mostly settled snow overlies the thick and hard mid-March crust below about 2200 m, and old wind-affected snow above 2200 m. Around Whistler, some facets have been reported around this crust.

Many operators are commenting on how large the cornices have formed this year.

The snowpack below the mid-March crust is wet but well settled and strong.

Thursday Night
Cloudy. 1 to 2 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1300 m.

Friday
Cloudy. 4 to 5 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1100 m.

Saturday
Mix of sun and clouds. 1 to 2 mm of precipitation as snow or rain at treeline. 20 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1400 m.

Sunday
Mostly sunny. 20 km/h west ridgetop wind. Treeline temperature 4 °C. Freezing level 2400 m.

Warming weather will change the game, click this link for great terrain and travel advice.

More details can be found in the Mountain Weather Forecast.

• Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
• Pay attention to cornices and give them a wide berth when traveling on or below ridges.
• Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.