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Archived

Avalanche Forecast

Dec 21st, 2019–Dec 22nd, 2019
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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
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

Regions: South Coast.

The recent snow is likely stabilizing but may need a bit longer at higher elevations.

Confidence

Moderate - Uncertainty is due to the limited number of field observations.

Weather Forecast

SATURDAY NIGHT: Partly cloudy, light southwest wind, treeline temperature -2 C, freezing level 900 m.

SUNDAY: Mostly clear skies, light southeast wind, treeline temperature -1 C, freezing level 1000 m.

MONDAY: Mix of sun and cloud, light west wind, treeline temperature -4 C, freezing level 500 m.

TUESDAY: Cloudy with snowfall, accumulation 5 to 10 cm, moderate southwest wind, treeline temperature -3 C, freezing level 600 m.

Avalanche Summary

A widespread avalanche cycle occurred on Friday. Avalanche activity is expected to decrease as the weather cools.

Snowpack Summary

Around 50 to 100 cm of snow fell in the past few days. Above around 1200 m, all of this likely fell as snow whereas rain has likely soaked the snow at lower elevations and stabilized it. This substantial amount of new snow will require a few days to stabilize at higher elevations.

Terrain and Travel

  • Be careful as you transition into wind affected terrain.
  • Avoid exposure to overhead hazards when solar radiation is strong.

Avalanche Problems

Storm Slabs

The recent storm snow may remain reactive to human activity at higher elevations, notably above around 1200 m. Use particular caution on steep slopes near ridges, where the snow may have been blown into deeper deposits.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2