A weak layer lingers in our snowpack. It is a good time to remain conservative with your terrain selection. See this forecaster's blog, which describes this persistent problem:
www.avalanche.ca/blogs/persistent-slabSummary
Confidence
Weather Forecast
SUNDAY NIGHT: Mostly cloudy, freezing level 600 m.MONDAY: Partly cloudy, light southwest winds, alpine temperature -8°c, freezing level 900 m. TUESDAY: Partly cloudy, light northwest winds, alpine temperature -9°c, freezing level below valley bottom. WEDNESDAY: Mostly cloudy, light southwest winds, alpine temperature -11°c, freezing level below valley bottom.
Avalanche Summary
A few small (size 1) wind slab avalanches were observed at high elevations on Saturday. Large (size 2 to 3) slab avalanches were triggered by explosives on Friday. The avalanches were generally 10 to 40 cm deep and within recent storm snow. There was also further evidence of the natural avalanche cycle from Thursday and Friday.
Snowpack Summary
Strong winds have redistributed the recent storm snow, producing wind slabs in lee terrain features. These slabs likely wont bond well to underlying surfaces.Beneath this, around 50 to 100 cm of snow is poorly bonded to a rain crust and a weak layer of feathery surface hoar and sugary facets. Avalanche activity, remote triggering, and snowpack test results tell us that it is a critical layer. It is best to remain conservative and travel cautiously with this layer in the snowpack.The lower snowpack is well-settled.
mconlan,
Avalanche Canada
