Wind and new snow will create dangerous avalanche conditions. Human triggered avalanches are very likely.
Minimize your exposure to overhead hazard, especially during periods of heavy snowfall or rapid loading from wind.
Snowfall, warm temps, and strong winds continue to build fresh storm slabs. In the alpine this problem will be most reactive where affected by wind. At treeline and below these will be most sensitive to triggering where they overlie surface hoar or a sun crust (from the recent inversion).
Overnight Sunday and into Monday there was a widespread natural avalanche cycle to size 3.5 triggered by new snow and strong winds.
Field teams found a developing storm slab at all elevations, that was reactive in steep or unsupported terrain features.
Neighbouring operations are reporting easy to trigger storm slabs in the size 1.5 to 2.5 range
Up to 40-60cms of storm snow has fallen with moderate Southwest winds. This storm snow has buried a spotty layer of surface hoar in sheltered areas at treeline & below. On solar slopes the storm snow buries a suncrust.
There are no persistent weak layers in the mid or lower snowpack.
Snowfall continues with 5-15cm a day throughout the forecast period.
Tonight Flurries, Snow: 5 cm. Alpine Low -11°C. Freezing level (FZL) 600m. Ridge wind SW 30-45 km/h.
Tues Snow: 15cm. Alpine high -9 °C. Wind SW 35-55 km/h. FZL 800m
Wed Flurries,Snow: 5 cm. Alpine high -10 °C. Wind SW 30-50. FZL 700m.
Thurs Scattered flurries, Snow: 7cm. Alpine High -11 °C. FZL Valley Bottom. Wind SW 25-45.
