Storm Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1.5–2.5
Recent snow and wind have developed reactive slabs. Since this snow fell with strong wind, avalanches will be more likely on leeward slopes and in cross-loaded features.
Continue to make conservative terrain choices.
Fresh wind and snow are keeping the avalanche problem alive.
Recent snow and wind have developed reactive slabs. Since this snow fell with strong wind, avalanches will be more likely on leeward slopes and in cross-loaded features.
Numerous natural storm slabs and wind slab avalanches (up to size 3) were reported from all elevations and all aspects during the heavy storm on Thursday.
Looking forward, we expect that human triggered avalanches remain likely.
If you are heading into the backcountry, please share any observations with the Mountain Information Network.
Some areas could see up to 20 cm of new snow by the end of the day Monday, with strong westerly wind. Expect to find, deeper, denser, reactive wind slabs on leeward slopes, possibly further downslope than normal. Below that, 90 to 140 cm of settling snow overlies previously wind-affected surfaces or a solid melt-freeze crust.
The remainder of the snowpack is consolidated with no layers of concern.
To read about conditions in Kakwa on Thursday, see this MIN report from the Avalanche Canada North Rockies field team.
Sunday Night
Mostly cloudy. 4 to 10 cm of snow. 45-70 km/h west ridgetop wind. Treeline temperature -5 °C.
Monday
Cloudy. 3 to 10 cm of snow. 50-70 km/h west ridgetop wind. Treeline temperature -4 °C.
Tuesday
Mostly cloudy. 10 to 20 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -3 °C.
Wednesday
Mostly cloudy. 10 to 30 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -2 °C.
More details can be found in the Mountain Weather Forecast.