Glacier

Continued snowfall over the past week has left us with approximately 100cm of snow over a persistent weak layer.

Stick to conservative lines until the new snow has had time to settle and bond.

Moderate

• Uncertainty is due to whether buried persistent weak layers become active, triggering avalanches, with the arrival of the forecast weather.

Reports of human trigged size 1 wind slabs at treeline on Friday. Multiple Sz 2 Natural avalanches also observed Macdonald W.

Limited alpine observations over the last few days but neighbouring operations have reported skier triggered persistent slab avalanches up to size 2 on buried surface hoar or a crust.

Tues- a widespread natural avalanche cycle occurred up to size 2.5. Artillery avalanche control in the highway corridor produced numerous size 3-3.5 avalanches.

Recent snowfall totals of up to 100 cm were accompanied by moderate to strong winds. This has formed wind slabs in the alpine and on exposed slopes at treeline.

Below this weeks storm snow, a layer of surface hoar is buried 60-100cm deep in sheltered areas at treeline & below. On solar slopes, the storm snow sits over a crust which is also acting as failure plan for human triggered avalanches.

The lower snowpack is well settled.

Tonight Isolated flurries - trace precipitation. Alpine Low -8°C. Winds SW 30- 46 km/h. Freezing level (FZL) 900m .

Sat Isolated flurries - trace precipitation. Alpine high -4°C. Winds SW 35 gusting to 65km/h. FZL 1200m.

Sun Snow, 25 cm. Alpine high -4°C. Winds SW 35km/h. FZL 1200m.

Mon Heavy snowfall, 30 cm. Alpine High -3°C. Winds W 20-35km/h. FZL 1600m.

• Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
• Approach steep and open slopes at and below treeline cautiously, as buried surface hoar may exist.
• Don't let the desire for deep powder pull you into high consequence terrain.