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Avalanche Forecast

Archived

Nov 29th, 2023–Nov 30th, 2023

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

North Rockies, Sugarbowl, McGregor, Pine Pass, Renshaw, Robson.

Wind-loaded areas hold the most snow but they also have the highest avalanche risk at this time.

Read the new Forecaster's Blog for more on the early-season snowpack.

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported in the region. Thanks to all those who have submitted a MIN report already this year, all the information is really helpful for forecasters.

Snowpack Summary

15 to 30 cm of unconsolidated snow overlies a series of crusts and in exposed areas old wind slab.

At treeline, the height of snow ranges from approximately 50 to 90 cm. At 1500 m snow depths decrease significantly.

The snowpack at all elevations is very shallow and contains many potential hazards just beneath the snow surface.

Data is very limited at this time. If you are recreating in the mountains please consider submitting a MIN report.

Weather Summary

Wednesday Night

Mainly clear, no precipitation, southeast alpine winds 10 km/h, treeline temperature -7 °C.

Thursday

Mix of sun and cloud, no precipitation, southerly alpine winds 10 to 20 km/h, treeline temperature -9 °C.

Friday

Partly cloudy with isolated flurries, trace accumulation, southwest alpine winds 10-30 km/h, treeline temperature -8 °C.

Saturday

Cloudy with scattered flurries, 2 - 5 cm accumulation, southwest alpine winds 20-40 km/h, treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Expect shallow snow cover that barely covers ground roughness.
  • Avalanche danger is often elevated in alpine gullies where snow has accumulated.
  • Be carefull around freshly wind loaded 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.