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Avalanche Forecast

Archived

Nov 24th, 2023–Nov 25th, 2023

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

Regions

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

A very shallow snowpack exists with numerous hazards present either at or just below the snow surface.

Remember, if the snow is deep enough to ride, it is deep enough to trigger an avalanche.

Confidence

Low

Avalanche Summary

No recent avalanches have been reported. Information from the field is sparse this time of year. Consider submitting a MIN report if you are recreating in the mountains.

Snowpack Summary

The snowpack is generally very shallow and contains many potential hazards just beneath the snow surface. At treeline, the height of snow ranges from approximately 50 to 100 cm. As you descend to lower elevations, snow depths decrease significantly. In the alpine, the snowpack remains relatively shallow and shows signs of heavy wind scouring.

In areas with deeper snow accumulations, wind-loaded snow may sit atop a weak basal snowpack.

The bottom of the snowpack consists of a combination of weak facetted crystals and multiple melt-freeze crusts.

Weather Summary

Friday Night

Mainly cloudy with no precipitation, northwest alpine winds 40 km/h, treeline temperature -5 °C.

Saturday

Mainly cloudy with no precipitation, northwest alpine winds 20 km/h, treeline temperature -3 °C.

Sunday

Mainly cloudy with no precipitation, northwest alpine winds 30 km/h, treeline temperature -3 °C.

Monday

Partly cloudy with no precipitation, west alpine winds 70 km/h, treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Expect shallow snow cover that barely covers ground roughness.
  • Winter conditions may exist in gullies, alpine bowls, and around ridgelines.
  • If it's deep enough to ride, it's deep enough to slide (avalanche).

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.