Avalanche forecast

Sea To Sky

Mar 2, 2017Avalanche Canada
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Archived · expired 10 years ago

Avalanche danger

Thu
Fri
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
1 · Low
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Highlights

Touchy storm slabs will develop with forecast strong winds and snow.

Avalanche problems

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2
    Touchy storm slabs will form with continued snowfall and warming temperatures, and expected to be especially deep and touchy on wind loaded slopes.

Confidence

Moderate - Forecast snowfall amounts are uncertain

Weather Forecast

THURSDAY: Continued snow with another 15 - 20 cm. Strong SW winds. Continued gradual warming with freezing level around 1100m and temperatures approaching a few degrees below freezing near treeline.FRIDAY: Periods of snow with another 5 - 10 cm. Moderate SW winds. Temperatures starting to cool with freezing level lowering to around 900m.SATURDAY: Cloudy with scattered flurries bringing another 5-10 cm. Light southerly winds and freezing levels dropping to 700 m.

Avalanche Summary

No new avalanches were reported Tuesday or Wednesday morning. This will likely change as wind driven snow starts to accumulate.

Snowpack Summary

As of Wednesday morning, much of the region received 10-20cm of fresh snow accompanied by southwesterly winds, which has blanketed previously wind-affected surfaces (e.g. scoured crust, hard sastrugi, or stubborn wind slabs) in exposed areas, or around 20 cm of faceted snow in sheltered areas. The mid and lower snowpack are well settled and strong. The forecast shift in the weather means new wind slabs and storm slabs will be forming.

Regions covered