Human-triggered wind slabs may step down to persistent weak layers.
Continually assess conditions as you travel and avoid aggressive terrain choices.
Strong to extreme winds have heavily impacted the alpine and open treeline terrain. Outflow winds are redistributing any remaining dry snow, building new wind slabs over hard previous surfaces.
This layer of concern can be found down 50 to 100 cm and has been reactive during snowpack testing.
A few small ( size 1) human-triggered wind slab avalanches were reported in the region and were initiated on a north facing slope.
30 to 50 cm of recent storm snow has been redistributed by moderate to strong west winds developing wind slabs. This snow sits on a thin layer of facets that was buried on March 3 this layer has recently been reactive to human triggers.
A crust/facet layer buried mid-February remains a concern and has been reactive in snowpack tests.
Below this, the lower snowpack is well settled and strong.
Thursday Night
Clear skies. 10 km/h north ridgetop wind. Treeline temperature -20 °C.
Friday
Sunny. 10 km/h northwest ridgetop wind. Treeline temperature -18 °C.
Saturday
Sunny. 20 km/h west ridgetop wind. Treeline temperature -16 °C.
Sunday
Mostly cloudy. 1 to 3 cm of snow. 40 km/h south ridgetop wind. Treeline temperature -14 °C.
More details can be found in the Mountain Weather Forecast.
