Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Very Likely
- Taille
- 1.5–3
This avalanche problem is associated with a weak facet and crust layer, buried at the end of January, down approximately 70cm in sheltered areas.
Up to 50 cm of new snow fell over the weekend, adding significant weight to an already weak snowpack. It will take time for the snowpack to adjust to these changes. Wait for the avalanche cycle to complete before entering any avalanche-prone terrain.
Check for avalanche closure updates on Alberta 511.
This avalanche problem is associated with a weak facet and crust layer, buried at the end of January, down approximately 70cm in sheltered areas.
Heavy precipitation and strong winds over the weekend will make for touchy widespread storm slabs.
Well developed facets and depth hoar at the bottom of the snow pack are still producing large avalanches in our region.
Up to 45 cm of new snow fell over the weekend. Below this fresh snow, the snowpack is complex, with multiple crusts and facet layers creating persistent weak layers. The bottom of the snowpack consists primarily of weak facets and depth hoar.
Obscured conditions all day on Sunday prevented any avalanche observations.Two large naturally occurring Deep Persistent Slabs were observed in the backcountry adjacent to the ski hill on March 7th.
Sunday night:Periods of snow. Accumulation: 15 cm. Alpine temperature: Low -10 °C. Mostly light ridge wind occasionally gusting to 55 km/h. Freezing level at valley bottom.
Monday
Cloudy with sunny periods and isolated flurries. Precipitation: Trace. Alpine temperature: High -9 °C. Ridge wind west: 15-35 km/h. Freezing level at valley bottom.