Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible - Likely
- Taille
- 1.5–3
Persistent and wet slabs have been seen to be failing on the arctic facets down 30-50cm
Warm temps are keeping the snowpack wet and isothermal. No re-freeze on the Spray lakes road for the past 3 days. There is a storm forecast to move into the region on Saturday afternoon that may give us up to 25cm of snow by Monday am.
Persistent and wet slabs have been seen to be failing on the arctic facets down 30-50cm
Watch for loose wet avalanche in lower elevations. Some areas (HWY 40) are down to bare grass around the Mt Kidd area.
Recent evidence exists of avalanche failing in the basal facets and depth hoar close to ground.
No new avalanche were observed,
Warm temps are making the snowpack isothermal in lower elevation areas and making the top 10-30cm moist at treeline and above. Light overnight freezes are helping, but they just can't compete with the daytime highs. Every day the snowpack is becoming weaker and weaker. This warmth induced rapid settlement is overloading the weak basal facets, and in some areas triggering full depth avalanches. Travel in avalanche terrain is not recommended at this time.
Another warm day on Friday although there will be some slight cooling and maybe even go below zero for the first time in a long time! As we transition into Saturday the temperatures will begin to get a bit more seasonal, and the weather pattern will change to out of the NE and over the weekend, there may be up to 25cm of snow falling with light to moderate northerly winds.
More details can be found in the Mountain Weather Forecast.