Avalanche forecast

Purcells

Dec 19 – 20, 2012Avalanche Canada
View on map
Archived · expired 14 years ago

Avalanche danger

Fri
Sat
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
Open full map

Highlights

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–4
    New strong Southwest winds combined with a couple of cms of snow overnight are expected to develop thin windslabs in the alpine and at treeline. These wind slabs may develop further during the day with continued precipitation.

Confidence

Fair - Forecast snowfall amounts are uncertain on Thursday

Weather Forecast

Overnight and Thursday: Strong Southwest winds combined with a few cms of new snow overnight. Snow fall amounts are expected to increase during the day Thursday as winds continue to be strong and shift to the West.Friday: Continued westerly winds in the morning should shift to the Southeast in the wake of the last storm. Light flurries may linger for the morning without much accumulation.Saturday: Light East-Southeast winds and cooler temperatures, Alpine overnight temperatures near -15.0.

Avalanche Summary

Large explosives created avalanches to size 1.0 in the North of the region. Loose snow avalanches up to size 1.0 were reported across the region.

Snowpack Summary

Thin wind slabs continue to develop with each pulse of snow and wind. Most of the precipitation has been tracking along the U.S. border, so the southern parts of this region may have quite a bit more new snow than the North. Areas with sheltered terrain have been reporting no new shears in the recent storm snow. Unconsolidated snow with thin wind slabs in exposed terrain in the alpine and at treeline has been reported from most areas.

Regions covered