Avalanche forecast

Banff Yoho Kootenay

Mar 28, 2014Parks Canada
View on map
Archived · expired 13 years ago

Avalanche danger

Sat
Sun
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
2 · Moderate
Open full map

Highlights

The story to watch for Friday is all about the wind. When will the wind come up? When it does, the avalanche danger will quickly rise to CONSIDERABLE. Until then - enjoy the totally amazing conditions that this unusual storm has brought to the park.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    In areas of the park with a weaker snowpack we remain concerned about the Feb 10 layer of facets and surface hoar located in the middle of the snowpack. This layer remains, and caution is advised in specific areas such as the burns in Kootenay Park.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Very Likely - Certain
    Size
    1–2
    Watch out for sluffs, as several big ones have been noted today and yesterday - particulary on steep, south facing terrain where a firm suncrust underlies this new snow. Check your exposure and make sure you don't get pushed into any obstacles.

Weather Forecast

The same weather pattern of light snow, cold temperatures and light wind continues until mid-day on Friday. Friday afternoon looks to be when the wind speed will increase (possibly up to 50km/hr at 3000m) and the temperatures will rise a few degrees. By Saturday another pulse of snow (with wind) will arrive - expect another 10cm at Bow Summit.

Snowpack Summary

Over 40 cm of snow has fallen in the Sunshine, Bow Summit and Lake Louise areas since Wednesday. This snow has fallen with no wind, and there is no slab formed in the surface snow - just 40 cm of fluff. This will change within hours when the wind starts to blow or the sun comes out, so watch for this critical change to begin on Friday afternoon.

Avalanche Summary

No new slab avalanches observed or reported today, but several loose snow avalanches (sluffs) up to size 2 were noted.

Confidence

Wind speed and direction is uncertain on Friday

Regions covered