Wind Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Very Likely
- Taille
- 1.5–2.5
Recent snow of up to 50cm, warms temps and strong westerly winds are creating reactive wind slabs.
With the cooler temperatures and previous widespread natural avalanche cycle, there is still the potential for avalanches to occur with human triggering, especially in the alpine where the rain crust doesn't exist.
Recent snow of up to 50cm, warms temps and strong westerly winds are creating reactive wind slabs.
Cornices have grown large over the past few days. Give them a wide berth.
With continued cooling, this problem has slowed down at treeline, no direct observations from the alpine recently
Temperatures went below freezing on Sunday and as a result there was a 5cm thick supportive crust in the valley floors. Under this crust, the snowpack is generally wet and isothermal to ground up to around 2400m. The cooler temperatures will take a few days to penetrate the snowpack here.
Above 2400m the recent precipitation mainly fell as snow and there is up to 50cm of snow that as of Sunday being redistributed by moderate westerly winds forming new wind slabs in the upper elevations.
No avalanches reported & no road patrol today
The recent widespread historical avalanche cycle is beginning to slow down but it hasn't ended just yet. Recent wind slabs on Saturday were still failing in alpine areas as the winds increased throughout the day.
The majority of recent avalanche activity looks to be initiated by Wind/Storm slabs in the alpine then pulling out a wet slab around 2400m that ran on possibly the Jan 27th SH/FC interface.
Monday: Cloudy morning will part to mostly sunny skies in the afternoon. A night time low of -8 & a day time high of -2. Moderate Sw winds at ridgetop. Freezing levels could rise to 1800m by afternoon.
More details can be found in the Mountain Weather Forecast.