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Avalanche Forecast

Archived

Nov 10th, 2019–Nov 11th, 2019

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

Regions

Jasper.

Early season conditions persist.  Minimal coverage at Treeline and Below

Weather Forecast

A mix of sun and cloud for the next few days.

Mon high -7.  Light ridge winds west . Precip. Nil

Tues high -2. Low -8.  Light ridge winds west.  Precip Trace

A detailed forecast can be found from Avalanche Canada's, Mountain Weather Forecast.

Snowpack Summary

New rain crust to 2400m. 5-10 cm recent storm snow sits above this new Nov crust. Total snow pack height in alpine 45-85 cm. Snowpack sits atop a weak basal crust from Oct 07.

Avalanche Summary

From Friday: Natural avalanche cycle up to size 2 were mostly loose point release on all aspects at treeline. They remain relatively small. One slab release size 2 on Parker Slabs from steep deposition zone showed good propagation likely on the basal crust. Visibility was limited. No new avalanches observed Sunday

Confidence

Due to the number of field observations

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.