A smorgasbord of crusts are making for poor skiing. Welcome snowfall tonight will help. Lee aspects at Treeline will offer the best snow... look for sheltered slopes though, to avoid grabby wind slabs.
Weather Forecast
A fast moving cold front hauls freezing levels down from treeline to lake level on Sunday night, bringing 10-15cm of new snowfall with strong-extreme SW winds. Winds ease tomorrow, and remain moderate from the SW through Wednesday. Cool temperatures; except becoming mild late Tuesday, with a skiff of fresh snow arriving tuesday night.
Snowpack Summary
More spring-like every week: firm, with a variety of crusts making for poor skiing below treeline, and on solar aspects. Strong SW winds are forming wind slabs, found lee of ridges at treeline, and on open slopes. These should bond quickly to the old snow. A crust-facet combo buried 30-60cm is now strengthening, but worth keeping in mind.
Avalanche Summary
Several small Loose Wet avalanches occurred Below Treeline on Friday night, during warm temperatures and light rain. Small, fresh cornices on Forum Ridge on Sunday were reactive to human triggering, but only propagated a few meters.
Confidence
Forecast snowfall amounts are uncertain
Problems
Wind Slabs
Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.