Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible - Likely
- Size
- 2–3
A hard crust with surface hoar or facets overtop is buried 40 to 100 cm deep. Storm slabs could step down to this layer, creating larger than expected avalanches.
New snow will be falling on a crust that extends to the mountain top in many places.
Check the bond between new snow and the crust before committing yourself to avalanche terrain.
A hard crust with surface hoar or facets overtop is buried 40 to 100 cm deep. Storm slabs could step down to this layer, creating larger than expected avalanches.
10-20 cm of new snow will accumulate by Sunday morning. Storm slabs will be most reactive in wind-loaded areas.
It's been a stormy week with a significant natural avalanche cycle occurring, numerous wet loose avalanches up to size 3 have occurred throughout the region on all aspects and elevations in the previous 24-72 hours.
Moderate southwesterly winds and 10-20 cm of precipitation or more will have accumulated by Sunday morning, with freezing levels dropping to 800 m.
A hard crust with surface hoar or facets that formed on January 26th is buried 40 to 100 cm deep. Storm slabs could step down to this layer, creating large avalanches.
Treeline snow depths throughout the region range from 250 to 450 cm.
Saturday Night
Mostly cloudy. 5 to 10 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 900 m.
Sunday
Cloudy. 5 to 10 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -2 °C. Freezing level 800 m.
Monday
Mostly cloudy. 4 to 15 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -2 °C.
Tuesday
Mostly cloudy. 3 to 10 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -3 °C.
More details can be found in the Mountain Weather Forecast.