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Avalanche Forecast

Archived

Jan 2nd, 2018–Jan 3rd, 2018

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Jasper.

While conditions are generally safe, expect some minor sluffing from steep terrain during the heat of the day.

Weather Forecast

A stable pattern with more seasonal temps will persist for the remainder of the week. The cold air in valley bottoms is beginning to mix with the warmer air aloft.Wednesday: Cloudy with sunny periods. Alpine temperature: Low -4 C, High 3 C. Light ridge wind. Weak temperature inversion.No precipitation is forecast until the weekend.

Snowpack Summary

Cold temps have facetted the upper snowpack. Isolated pockets of wind slab in ALP areas sitting on an old snow interface of facets, sun crust, wind effect, or surface hoar. 2 buried crusts extend into the lower limits of the alpine, both are dormant.  The upper crust is providing mid-pack strength, but has facets above and below it.

Avalanche Summary

Isolated small loose snow avalanches occurred in steep alpine terrain with today's warming temps.

Confidence

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.