Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–3.5
Human triggering remains a concern with buried weak layers. Minimize your exposure to large open slopes, especially on shallower terrain features at alpine and treeline.
Back off sun affected slopes as snow becomes wet and slushy.
While dry snow may remain on north facing features at treeline and alpine elevations, weak layers are possible to trigger here.
Human triggering remains a concern with buried weak layers. Minimize your exposure to large open slopes, especially on shallower terrain features at alpine and treeline.
The potential for wet avalanches will increase throughout the day with warm and sunny conditions, particularly on steep south-facing terrain. Avoid sun affected terrain as the surface crust breaks down.
No new avalanches were reported on Friday. Loose wet avalanches were observed from steep solar slopes earlier this week. Avalanches ranged from size 1-2.5, with the larger avalanches scouring to ground.
The last persistent slab activity was reported on Wednesday to size 3. This occurred on south facing alpine slopes likely triggered by daytime warming. Size 2 avalanches were also skier triggered in shallow rocky areas, producing persistent slab avalanches.
Saturday Night
Clear skies. Light and variable winds. Freezing levels remain around 2000 m overnight.
Sunday
Sunny. 20-30 km/h southwest ridgetop wind. Treeline temperature +4. Freezing levels remain around 2000 m throughout the day.
Monday
Mostly cloudy. 20 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level remains around 1200 m.
Monday
Mostly cloudy. 10 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level remains around 1200 m.
More details can be found in the Mountain Weather Forecast.