Avalanche Forecast
South Coast
Human-triggered avalanches are likely. Storm snow will take longer than usual to gain strength.
Avalanche Problem 1: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Be very cautious near open slopes and convex rolls
- Use caution above cliffs and terrain traps where small avalanches may have severe consequences.
- Use careful route-finding and stick to moderate slope angles with low consequences
Avalanche Problem 2: Cornices
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Large cornices have formed along ridgelines. Cornices are inherently unstable, unpredictable, and demand respect. Give them a wide berth from above and below.
Travel and Terrain Advice
- Firm cornices may pull back into flat terrain at ridgetop if they fail.
- Give cornices a wide berth when traveling on or below ridges.
Avalanche Summary
Storm snow was very reactive on Saturday, with numerous reports of size 1-2 slab avalanches being triggered by skiers, including remotely (from a distance). Activity occurred on all aspects at both treeline and below treeline elevations. Conditions were likely similar in alpine terrain.
Snowpack Summary
Recent snowfall has buried a hard rain crust that extends into alpine terrain. The crust is now roughly 40 cm below the surface, and reports suggest the snow will take several days to bond to the crust. The result is a very touchy storm slab above the crust. There are no significant layers of concern below the crust.
Weather Forecast
SUNDAY: A few light flurries in the morning and then clearing and cooling as Arctic air pushes into the region, moderate northeast wind, alpine high temperatures around -10 C.
MONDAY: Sunny, light wind, alpine high temperatures around -10 C.
TUESDAY: Mostly sunny, light wind, alpine high temperatures around -8 C.
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Storm slabs will remain very reactive to human triggers on Sunday. Surprisingly wide propagations are possible because of the buried crust.