Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1.5–3
A persistent weak layer of facets is down 80–120 cm and may still be triggerable by humans in shallow areas, or by large loads like collapsing cornices.
The sun is packing a lot more punch now. It's a good time of year to start and finish early before things get too warm.
A persistent weak layer of facets is down 80–120 cm and may still be triggerable by humans in shallow areas, or by large loads like collapsing cornices.
Watch for this problem to develop during the day as the intensity of the sun increases and the temperatures warm.
No new avalanches have been observed in the last couple days.
Up to 10cm of new snow has been redistributed by previous SW winds, and overlies a sun crust on solar aspects. A thicker melt-freeze crust is found down 20–40 cm at tree line and below. The Jan 24 persistent weak layer is 80–120 cm deep, and mainly a lingering concern in the alpine.
A mix of sun and cloud.
Precipitation: Nil.
Alpine temperature: High 1 °C.
Ridge wind light to 15 km/h.
Freezing level: 2400 metres.
SaturdayCloudy with sunny periods and isolated wet flurries.
Precipitation: Trace.
Alpine temperature: Low -1 °C, High 2 °C.
Ridge wind light to 15 km/h.
Freezing level: 2300 metres.
SundayMainly cloudy with isolated flurries.
Precipitation: Trace.
Alpine temperature: Low -1 °C, High 1 °C.
Ridge wind light to 20 km/h.
Freezing level: 2300 metres.