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Avalanche Forecast

Nov 22nd, 2023–Nov 23rd, 2023
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
Early Season
The avalanche danger rating below treeline will be early season
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
Early Season
The avalanche danger rating below treeline will be early season
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
Early Season
The avalanche danger rating below treeline will be early season

Trace amounts of new snow on top of Tuesday's temperature crust could lead to a slippery sliding surface and small avalanches. This could be an issue for ice climbers in high consequence terrain.

Early Season Conditions persist, so travel with caution.

Confidence

Low

Avalanche Summary

Whumphing was reported in the Hilda ridge area on Saturday.

Snowpack Summary

The snowpack is very shallow with only 25-40cm at treeline. The alpine is heavily wind effected with scoured windward slopes and ridges. Snowpack can be a meter deep in leeward features. Expect a temperature crust on all aspects to mountain top under about 5cm of fresh snow.

Weather Summary

The Mountain Weather Forecast is available from Avalanche Canada https://avalanche.ca/weather/forecast

Thursday

A mix of sun and cloud.

Alpine temperature: High -8 °C.

Light ridge wind.

Friday

A mix of sun and cloud.

Alpine temperature: Low -5 °C, High -2 °C.

Ridge wind light to 20 km/h.

Terrain and Travel Advice

  • Watch for areas of hard wind slab on alpine features.
  • Ice climbers should be equipped with avalanche safety gear.

Avalanche Problems

Wind Slabs

Wind event on Tuesday has likely created wind slabs in cross-loaded terrain and possibly into treeline where there is enough snow to slide.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Loose Dry

Ice climbers should watch for small sluffs in high consequence terrain with fresh snow falling on top of a slippery crust.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 1.5