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Avalanche Forecast

Archived

Nov 20th, 2024–Nov 21st, 2024

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

Regions

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

The snowpack is surprisingly supportive to riders... in the few spots, you can find some decent early season turns. But don't get too wild yet - hidden hazards lay beneath the surface.

Confidence

Moderate

Avalanche Summary

Field patrols in the Bald Hills and Icefields, 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

Over the past five days, the Icefields area has received 20 cm of new snow, which overlies a thin crust observed in ridable locations. 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. A notable feature is the 5-15 cm thick crust near the base of the snowpack, surrounded by facets above and below.

Weather Summary

Thursday

Cloudy with scattered flurries.

Accumulation: 4 cm.

Alpine temperature: High -7 °C.

Ridge wind light to 20 km/h.

Freezing level at valley bottom.

Friday

Cloudy with sunny periods and isolated flurries.

Precipitation: Trace.

Alpine temperature: Low -10 °C, High -7 °C.

Light ridge wind.

Freezing level at valley bottom.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.

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.