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Avalanche Forecast

Archived

Apr 3rd, 2022–Apr 4th, 2022

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

Regions

Jasper.

Increasing Southwest wind with 10-15cm of new snow overnight will create new winds labs in the Alpine and at Tree Line elevations. Expect the hazard to increase throughout the day and watch out for dry loose activity in steep, wind sheltered areas.

Weather Forecast

Tonight: Flurries. Accumulation: 11 cm. Alpine temp High -5 C. Ridge wind SW 20 km/h gusting 55. Freezing level 1400 meters

Monday: Cloudy with scattered Flurries. Accumulation 4cm. Alpine temp high -3. Wind SW 20km/h gusting 50. Freezing level 1400m

Tuesday: A mix of sun & cloud with isolated flurries & trace precipitation. Wind W 20- 45 km /h

Snowpack Summary

As of sunday afternoon, 2-5 cm of new snow sits over a sun crust on solar aspects to Mountain top. A Melt Freeze crust exist's on northerly aspects up to 2200m with dry, well settled snow on true north slopes above that elevation. Moderate wind effect in the ALP.

Avalanche Summary

A few small, size 1 wind slabs have been observed in higher elevation leeward features.

Confidence

Intensity of incoming weather systems is uncertain on Monday

Problems

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.

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.