Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely - Possible
- Size
- 2–3.5
Persistent slab avalanches remain possible, especially later in the day as the surface snow deteriorates, and weakens from daytime warming and solar effect.
A widespread surface crust makes for generally safe conditions.
Weak overnight recovery may allow the snow to deteriorate rapidly with daytime warming.
Persistent slab avalanches remain possible, especially later in the day as the surface snow deteriorates, and weakens from daytime warming and solar effect.
Wet loose avalanche likelihood will increase throughout the day with daytime warming and sunny conditions, particularly on steep south-facing terrain.
No new recent avalanches were reported. A few wet loose avalanches (size 1) were observed earlier this week, primarily below treeline and on steep south-facing terrain
The widespread, natural avalanche cycle reported over the weekend appears to have ended.
If you go into the backcountry, please submit your observations to the Mountain Information Network.
A widespread melt-freeze crust exists on the surface at higher elevations. With strong solar warming expected, anticipate the surface crust to weaken at lower elevations and on south-facing slopes throughout the day. Isothermal snowpack still exists at lower elevations.
Various weak layers, including crusts, facets, and/or surface hoar exist approximately 90 and 180 cm below the surface.
Wednesday Night
Mostly clear with no precipitation. 10 to 30 km/h northeast ridgetop wind. Treeline temperature 0 °C. Freezing level near 1000 m.
Thursday
Mostly sunny with no precipitation. 10 to 20 km/h east ridegtop wind. Treeline temperature 3 °C. Freezing level rising near 1500 m.
Friday
Mostly sunny. 20 to 40 km/h southeast ridgetop wind. Treeline temperature -2 °C. Freezing level near 800 m.
Saturday
Mostly sunny. 30 to 50 km/h northeast ridgetop wind. Treeline temperature -3 °C. Freezing level near 500 m.
More details can be found in the Mountain Weather Forecast.