Watch for unstable snow on isolated terrain features; identify features of concern. Skier reactive wind slabs on both south and north aspects are likely to be found on the immediate lee of ridges. Cornice failure is a major concern today in the sun.
Weather Forecast
Today, sunny with cloudy periods, nil for precipitation. Alpine temperature high of -15C. Ridge wind will be light out of the west. Freezing level at valley bottom. Stay aware of possible periods of intense solar affecting the slopes you are on and terrain above you - cornices will weaken in direct sun.
Snowpack Summary
In the alpine and treeline elevations, expect to find wind affected snow in wind exposed areas and immediately below ridge crests - these areas are more likely to be avalanche trigger zones. Good quality skiing can be found in locations that are less disturbed by the wind. Below 1500m crusty conditions exist. Direct sun will bring the hazard up.
Avalanche Summary
Skier triggered and natural sluffing has been observed on steeper slopes over 35deg. These avalanches were generally small but could push you into terrain traps and trees. On Friday, there were three size 1.5 storm slabs on Glacier Crest and a size 2.0 NC in the Crossover slidepath. Macdonald Gully 6 had a size 3.0 NC, running to almost full extent
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.
Loose Dry
Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.