Avalanche Forecast

A cool northwest flow starts in the wake of the Sunday night storm.

SUNDAY NIGHT: 15-20 cm of snow overnight at the trailing end of the storm, 40-50 km/h south wind, freezing level around 1000 m with treeline temperatures around -2 C. 

MONDAY: Mostly sunny with some brief flurries, 20-30 km/h northwest wind, freezing level drops to 600 m with treeline temperatures around -2 C.

TUESDAY: Mix of sun and cloud, 20-30 km/h west wind, treeline temperatures around -3 C.

WEDNESDAY: Cloudy with scattered flurries bringing 10-15 cm of snow, 30-50 km/h southwest wind, freezing level climbing to 1200 m with treeline temperatures around -1 C.

Storm slabs will grow rapidly on Sunday night with some natural activity likely during the peak of the storm in the evening. See this MIN report that shows storm slab reactivity increasing during the day on Sunday.

These slabs will gradually strengthen throughout the day on Monday, but human triggered slabs are still a concern and it will be important to carefully monitor the reactivity of storm snow through the day.

As the storm eases on Monday morning there will be 30-50 cm of fresh storm snow. Amounts will likely increase dramatically with elevation. The snow is should strengthen relatively quickly when storm ends, but storm slabs will still be a concern throughout the day. North facing slopes likely have thicker slabs due to wind loading. 

Along ridgelines, cornices are large and always have the potential of failing or being triggered from the weight of a human.

• Don't be too cavalier with decision making, storm slabs may remain sensitive to human triggering.
• If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.
• Back off if you encounter whumpfing, hollow sounds, or shooting cracks.
• Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
• Pay attention to cornices and give them a wide berth when traveling on or below ridges.