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Avalanche Forecast

Nov 22nd, 2024–Nov 23rd, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

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

Observations are limited and early-season hazards are abundant.

Take a conservative approach and watch for signs of instability as you travel through terrain.

Confidence

Moderate

Avalanche Summary

On Thursday, a few small human-triggered wind slab avalanches were reported in alpine terrain.

Looking forward, storm slabs may remain reactive to human triggering for longer than is typical due to the weak layer they may be sitting on. Be especially cautious in wind-loaded terrain.

If you get out in the backcountry, please consider posting a MIN (Mountain Information Network).

Snowpack Summary

20 to 30 cm of new snow arrived on Wednesday night accompanied by moderate southerly winds. Below 2100 m, a thin crust may exist under the new snow.

A weak layer consisting of a crust, facets, and/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

Friday Night

Cloudy with up to 5 cm of snow expected. 15 to 30 km/h south ridgetop wind. Treeline temperature -3 °C.

Saturday

Mainly cloudy with up to 5 cm of snow expected. 5 to 15 km/h west ridge top winds. Treeline temperature -5 °C.

Sunday

Mainly cloudy with up to 5 cm of snow expected. 20 to 50 km/h southwest ridgetop winds. Treeline temperature -6 °C.

Monday

Cloudy with 5 to 10 cm of snow expected. 15 to 40 km/h south ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be especially cautious as you transition into wind-affected terrain.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.

Avalanche Problems

Storm Slabs

Recent storm snow and southerly winds have formed a slab that may overlie a weak layer of facets, crust and/or surface hoar. Avoid areas where the snow surface feels stiff or slabby.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1.5 - 2.5