Avalanche Forecast
South Coast
Fresh storm slabs may bond poorly to chunky, variable crusts. Watch for how the new snow is bonding to the old surface.
Avalanche Problem 1: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Watch for signs of instability such as whumpfing, cracking or recent natural avalanches.
- Choose conservative lines and watch for clues of instability.
Avalanche Summary
On Sunday, skiers were able to trigger Size 1 storm slabs on westerly aspects near tree line in the North Shore mountains.
Snowpack Summary
10-25cm of snow from the weekend now sits on a widespread melt-freeze crust, which exists on all aspects and elevations. How well the incoming new snow bonds to this crust will be a critical determinant of avalanche danger on Monday.
Below the snow surface, the upper snowpack is well-settled and bonding well to the late-November rain crust.
Below tree line the snow pack is thin and there are many early season hazards. Snowpack depths range from 40 cm at 800 m elevation to 200 cm at 1220 m.
Weather Forecast
Monday will see a brief lull in the active weather pattern before significant precipitation arrives on Tuesday.
MONDAY: Cloudy with isolated flurries. Accumulation of 5 cm possible. Ridge wind light from the west. Temperature near 0. Freezing level 800 m.
TUESDAY: Snow. Accumulation 20-30 cm. Ridge wind light from the southeast. Temperature near -1. Freezing level 700 m.
WEDNESDAY: Sunny with cloudy periods. Ridge wind moderate northerly. Freezing level 600 m.
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Initial reports suggest the new snow is bonding well to an underlying crust. Take a conservative approach to terrain use if you find more than 20cm of new snow on a firm crust.