Direct sun is likely to weaken surface snow layers and give cornices a bit of an extra nudge. Avalanche danger may spike higher than forecast on sun-exposed slopes.
Avalanche Problem 1: Storm Slabs




- Use ridges or ribs to avoid pockets of wind loaded snow.
- Use caution on open slopes and convex rolls
Avalanche Problem 2: Loose Wet




Sun on new snow is likely to lead to loose moist avalanches which could run surprisingly far.
- Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
- Choose regroup spots carefully, thinking about what is above you.
Avalanche Summary
On Wednesday, a chunk of falling ice triggered a size 2.5 avalanche. On Tuesday, a few large cornice falls were reported, without releasing large avalanches on slopes below. A few loose wet solar-triggered avalanches were also observed.
Snowpack Summary
Around 20 cm new snow has formed storm slabs and variable thin wind slabs.
Persistent weak layers from early January and mid-December are still being reported by local operators. They are generally considered dormant, but could wake up with forecast warming, a surface avalanche stepping down, a cornice fall, or a human trigger in a shallow or variable-depth snowpack area. These layers consist of sun crust, surface hoar and/or facets. Facets linger at the base of the snowpack.
Weather Forecast
FRIDAY: Mix of sun and cloud. Treeline temperature near -3. Light winds.
SATURDAY: Mainly sunny. Treeline temperature near -1. Light winds.
SUNDAY: Mainly sunny. Treeline temperature near -1. Light winds.
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Recent snow and wind have formed variable storm slabs. Large cornices may also be fragile, and could trigger deep/large avalanches on slopes below.