Avalanche Forecast

Archived

Nov 11th, 2019–Nov 12th, 2019

Alpine

Natural avalanches unlikely.

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.

Winter is well on its way now. Although the skiing is variable there is lots of good options for ice climbing.

Weather Forecast

Cloudy with flurries for the next few days.

Tues high -7. ridge winds west . Precip. 2mm

Wednesday high -2. Low -6. Light ridge winds west. Precip 3mm

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

Snowpack Summary

5-10 cm of snow sits above the recent November rain crust which goes as high as 2300m in the terrain. Total snow pack height in alpine is around 45-85 cm and sits on top of a variable weak basal crust from early October. A variety of surfaces can be found in the alpine from wind pressed/scoured features to wind slabs in the lee in the high alpine.

Avalanche Summary

A field team today reported no new avalanches but signs of wind transport in the high alpine peaks and ridge tops.

Confidence

Wind effect is extremely variable

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.