Avalanche forecast

South Coast

Mar 11, 2018Avalanche Canada
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Archived · expired 9 years ago

Avalanche danger

Mon
Tue
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Highlights

High freezing levels and sunshine will weaken surface snow at upper elevations

Avalanche problems

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Warm temperatures and sunshine will make already large and overhanging cornices ripe for triggering.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–1.5
    Sunshine and warm temperatures will weaken the surface snow surface.

Confidence

High -

Weather Forecast

SUNDAY: Mix of sun and cloud / Light southeast wind / Alpine temperature 9 / Freezing level 2000m MONDAY: Mainly sunny / Light to moderate southeast wind / Alpine temperature 12 / Freezing level 2500m TUESDAY: Rain showers / light to moderate east wind / Alpine temperature 11 / Freezing level 2400m

Avalanche Summary

No recent notable avalanches have been reported.

Snowpack Summary

Up to 45cm of new snow at upper elevations accumulating Thursday and Friday has settled, bonded and/or been redistributed by southerly winds. This new snow sits on a sun crust or moist snow on steep south-facing slopes, cold dry snow on northerly aspects, and an overall well settled snowpack. Thursday's precipitation fell as rain below 1200m where the surface snow is either wet or presents as a crust. Cornices have formed on many alpine ridge lines. They will become touchier as they grow in size, as temperatures rise, and as they are subject to the strong late-winter sun on clear days.

Regions covered