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Avalanche Forecast

Archived

Nov 23rd, 2024–Nov 24th, 2024

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.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

South Columbia, South Okanagan, West Purcell, Badshot-Battle, Goat, Gold, North Okanagan, Retallack, Valhalla, Whatshan.

Observations are limited and early-season hazards are abundant.

Take a conservative approach and watch for signs of instability as you transition into wind-affected terrain.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported in the past few days, but field observations remain very limited.

If you head out in the backcountry, let us know what you are seeing by posting to the Mountain Information Network! 🙏

Snowpack Summary

Light snowfall will accumulate atop wind-affected surfaces in open areas and 20 to 30 cm of settling snow in sheltered areas.

A weak layer consisting of a crust, facets, or surface hoar is buried 30 to 70 cm below the surface. Observations are limited at this time of year and the geographical extent of this weak layer is still uncertain.

Treeline snowpack depth is around 120 to 160 cm.

Weather Summary

Saturday Night

Partially cloudy with isolated flurries. 5 to 15 km/h southwest ridgetop wind. Treeline temperature drops to -10 °C.

Sunday

Mostly cloudy with isolated flurries. 5 to 15 km/h southwest ridgetop wind. Treeline temperature - 8°C.

Monday

Cloudy with light snowfall, up to 5 cm of accumulation. 5 to 15 km/h south ridgetop wind. Treeline temperature -6 °C.

Tuesday

A mix of sun and cloud with light flurries. 15 to 50 km/h west ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.

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.