Don’t be complacent with the deep persistent slab as it's difficult to predict. It remains a low-probability, high-consequence problem. Be cautious in thin and variable snow depth spots, overhead slopes and large cornices. Assess slopes thoroughly before launching.
This problem is low probability-high consequence. Be cautious where the snowpack transitions from thick to thin areas. A size 3 avalanche was observed on this layer in the Marmot basin zone a few days ago. This problem encompasses multiple weak layers of facets, crusts, and basal facets.
No field patrol on Monday or Tuesday and nothing reported. Sunday's field team in the Nigel area reported no new naturals. A size 3 deep persistent slab was triggered in terrain adjacent to the ski hill on Friday. Maligne Road Patrol on Saturday observed several solar triggered avalanches up to size 1.5
Surface hoar has been forming overnight and observations found it at 2700m and likely higher. Otherwise, the surface is firm and wind impacted from previous winds. Soft snow remains in sheltered areas. Solar slopes host variable crusts, especially on steep aspects. The snowpack is generally deeper in the Icefields and shallower at Maligne lake.
Wednesday to Friday will be mostly sun, average temperature of -12 °C, and light North to calm winds. Saturday might warm up slightly to -4 °C.
