Avalanche forecast

South Coast Inland

Nov 30, 2018Avalanche Canada
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Archived · expired 8 years ago

Avalanche danger

Sat
Sun
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Highlights

Avalanche danger has decreased, but cornices and wind slabs likely remain problematic in the alpine, especially in extreme terrain. We have no recent observations from this region, please let us know what you're seeing on the MIN!

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    If there's any good riding/travel to be had, it's going to be in the alpine. This is also where you're most likely to find storm and wind slabs slabs that may remain sensitive to human triggering.

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Cornices have likely formed on alpine ridgelines. Cornices are typically most prone to failure during times of transition. Now is one of those times as the snowpack adjusts to the most recent storm and we enter a colder period.

Confidence

Low - Due to the number of field observations

Weather Forecast

We are slowly transitioning towards a period of pronounced high pressure.  The forecast period is marked by cooler temps, very little precipitation and the potential for less cloud cover by the weekend.  THURSDAY NIGHT: Freezing level around 700 m, light southwest wind, no significant precipitation expected.FRIDAY: Overcast, freezing level around 1000 m, light west wind, a trace of snow possible. SATURDAY: Scattered cloud cover, freezing level around 750 m, light variable wind, no significant precipitation expected.SUNDAY: Scattered cloud cover, freezing level around 700 m, light northerly wind, no significant precipitation expected.

Avalanche Summary

No recent avalanches reported. Please submit any observations you have to the Mountain Information Network here.

Snowpack Summary

Before the most recent storm, snow depths were around 50 to 90 cm at treeline and alpine elevations. Monday and Tuesday's intense precipitation event probably rain-soaked the existing snowpack up to about 1900 m. Temperatures remained cool on Tuesday above 1900 m, when 15 to 20 cm of snow fell. Moderate to strong south/southwest wind on Monday and Tuesday likely formed storm slabs, cornices, and wind damaged snow in high elevation alpine terrain.

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