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Avalanche Forecast

Archived

Nov 25th, 2024–Nov 27th, 2024

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

Waterton Lakes, Waterton.

There is now enough snow to ski near the divide and groups are reporting good ski quality. As always at this time of year watch out for early season hazards like stumps and rocks. With lots of low density snow available for transport and wind in the forecast expect new sensitive windslabs to form.

Confidence

Low

Avalanche Summary

No new avalanches observed however very limited field work.

Snowpack Summary

Around 80cm of new storm snow sits on ground or old snow in some isolated high alpine locations. Moderate to Strong SW winds are forming windslabs in the alpine and at treeline.

Weather Summary

Mon

Overcast skies with flurries through the day. Alpine high of -5 and moderate to strong SW winds at ridgecrest

Tues

Overcast skies with no significant precip. Alpine high of -5 and moderate to strong SW winds at ridgecrest

Wed

Overcast skies with flurries through the day. Alpine high of -5 and moderate to strong SW winds at ridgecrest

Check out the Mountain Weather Forecast for the most up to date information.

Terrain and Travel Advice

  • Pay attention to the wind; once it starts to blow, sensitive wind slabs are likely to form.

Problems

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.