Arctic air has arrived. Stay warm.
Weather Forecast
Tuesday and Wednesday will be -18 to -30, sunny, light NE to NW winds, and no precipitation. Thursday will be mixed cloud and -20 with light flurries in the evening into Friday.
Snowpack Summary
On Saturday night we received 10-20cm new snow with ridge-top snow transport and cross loading on Sunday. Winds have shifted light Northerly. Wind slabs 50+cm on some open features at TL and above. Nov 12 crust is exposed in open Alpine features on the windward side and down 40 to 70cms or more in the lee. Temperature gradient promoting facetting.
Avalanche Summary
No patrol Monday. Sunday's Icefield's patrol observed several loose dry activity on solar aspects. 2300 to alpine small windslabs 24-48 hrs old.
Confidence
The weather pattern is stable
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.