Avalanche forecast

Northwest Inland

Apr 4 – 5, 2015Avalanche Canada
View on map
Archived · expired 11 years ago

Avalanche danger

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

Highlights

Use caution on wind loaded features. Solar aspects may become reactive in the afternoon.If you have observations you'd like to share with other riders, click here.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–4
    In addition to already existing wind slabs, incoming precipitation may build another set of slabs.

Confidence

Fair - Due to the number and quality of field observations

Weather Forecast

The last of the Pacific low off the coast will send 15 to 20cm of snow to the upper elevations this evening, tapering off early Sunday morning, and drying out for the beginning of the week.. Mostly light and gusty south easterly alpine winds are expected throughout the forecast period. Daytime high will bring the freezing level to around 1200m for the next few days, then climbing to close to 2000m by mid week.

Avalanche Summary

No reports of avalanches from the past few days.

Snowpack Summary

Approximately 15-30 cm of dense storm snow overlies a variety of old surfaces. Recent strong winds have scoured windward slopes and loaded lee slopes. Persistent weaknesses buried in the upper snowpack may include hard crusts and/or facets, although not much is known about the reactivity or spatial distribution of these layers. At the base of the snowpack, weak facets may be found. Cornices are large and potentially fragile. Unpredictable, full-depth glide avalanches are also a concern on low elevation slopes with smooth ground cover (grassy slopes, rock slabs, etc.) where large cracks have formed from the snowpack slipping on the ground.

Regions covered