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Avalanche Forecast

Archived

Nov 22nd, 2024–Nov 23rd, 2024

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

Regions

Jasper, Brazeau, Churchill, Cirrus-Wilson, Fryatt, Icefields, Maligne, Marmot, Miette Lake, Pyramid.

A bit of new snow will improve skiing conditions, but be mindful of windslabs.

Confidence

Moderate

Avalanche Summary

No new recent avalanches observed or reported.

If you're out in the field, consider sharing your findings by posting a MIN report.

Snowpack Summary

New snow will fall on old windslabs and a faceted midpack. There is a thin crust 20-30cm below the surface, as well as a notable 5-15 cm thick crust near the base of the snowpack, surrounded by facets above and below. Snow depth in the alpine is approximately 70 cm but varies greatly due to recent wind effect. Traveling through TL, the snow tapers off quickly with elevation.

Weather Summary

Saturday

Cloudy with sunny periods and isolated flurries (trace amounts).

Low of -8 °C and a high of High -4 °C, with winds from the west 10-20 km/h.

Freezing level: 1600 metres.

Sunday

Cloudy with sunny periods and isolated flurries (trace amounts).

Low of -13 °C and a high of -10 °C with light ridge winds.

Freezing level at valley bottom.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Avoid freshly wind-loaded terrain features.

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.