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Avalanche Forecast

Dec 31st, 2023–Jan 1st, 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: Kitimat, Nass, Rupert, Seven Sisters, Shames.

Cooler temperatures have likely re-frozen the surface snow into a rain crust up to 1500 m. Any new snow at upper elevations has been redistributed to form wind slabs in alpine lee terrain.

Confidence

No Rating

Avalanche Summary

There were no reports of avalanche activity on Sunday.

On Saturday there were reports of widespread wet loose and wet slab avalanches size 1-2 on all aspects These likely happened Friday, Friday night and Saturday.

Snowpack Summary

There is likely a rain crust at or near surface up to 1500. At upper elevations, moderate to strong southwest winds have redistributed any recent snow into lee terrain.Two buried surface hoar layers may still found in isolated areas, buried 75-100 cm, and 120-200 cm deep. Their likelihood of triggering has likely reduced with the recent warm temperatures, rain and subsequent re-freezing. Snow depths are highly variable depending on elevation, and decrease rapidly below treeline.

Weather Summary

Sunday Night

Mostly cloudy with 3-6 cm of snow, south west wind 30-50 km/h, treeline temperature -4 °C, freezing level 500 m.

Monday

Mainly cloudy with 1-3 cm of snow, southwest wind 20-40 km/h, treeline temperature -3 °C, freezing level 400 m.

Tuesday

Cloudy with flurries, southeast wind 15-30 km/h, treeline temperature -2 °C freezing level 500 m.

Wednesday

Cloudy with snow, southeast wind 40-60 km/h, treeline temperature 0 °C freezing level around 1000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Avoid freshly wind loaded terrain features.

Avalanche Problems

Wind Slabs

Recent snow and/or rain was accompanied by moderate to strong southeast and southwest wind.

Aspects: North, North East, East, South East, North West.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 1.5

Persistent Slabs

There is uncertainty with the reactivity of two buried surface hoar layers. Recent warm temperatures, rain and subsequent re-freezing have reduced the likelihood of triggering these layers.

Aspects: All aspects.

Elevations: Treeline.

Likelihood: Unlikely

Expected Size: 1.5 - 3