Avalanche forecast

Sea To Sky

Feb 17 – 18, 2012Avalanche Canada
View on map
Archived · expired 15 years ago

Avalanche danger

Sun
Mon
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
Open full map

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely - Very Likely
    Size
    1–4
    Forecast strong winds and moderate snowfall will create new and reactive wind slabs at treeline and in the alpine.

Confidence

Fair - Forecast snowfall amounts are uncertain on Friday

Weather Forecast

Saturday: light accumulations of new snow / moderate southeasterly winds becoming light throughout the day / freezing level @ 1000m Sunday: trace amounts of snowfall / light to moderate northwesterly winds / freezing level @ 700m Monday: light snowfall / strong westerly winds / freezing level @ 1000m

Avalanche Summary

Fairly widespread wind slab activity is expected with strong winds and moderate snowfall forecast for Friday night.

Snowpack Summary

Moderate snowfall and strong winds forecast for Friday night will create new wind slabs and continue to bury an assortment of old snow surfaces including crusts and surface facets. The crusts exist on all aspects at lower elevations and on steep solar aspects higher up. Surface facets have grown particularly on northern aspects where colder temperatures have persisted. Facets may also exist in combination with crusts. The mid and lower snowpack are strong and well settled. The average treeline snowpack depth is about 240cm.

Regions covered