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Avalanche Forecast

Feb 14th, 2023–Feb 15th, 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
1: Low
The avalanche danger rating below treeline will be low
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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

Regions: East Island, North Island, South Island, Vancouver Island, West Island.

Wind slabs may linger near the mountain tops on atypical slopes.

Confidence

High

Avalanche Summary

We didn't hear of any new avalanche observations on Sunday or Monday. Numerous small storm slabs released on Saturday during stormy weather.

Looking forward, human-triggered wind slab avalanches are possible in southerly slopes near mountain tops.

Snowpack Summary

On sun-exposed slopes and below 1000 m, a surface melt-freeze crust exists from Tuesday's sun and warm air. Above 1000 m on shaded slopes, anywhere from a dusting to 10 cm of dry snow rests above a melt-freeze crust that formed during the weekend's rain. Strong to extreme northerly wind redistributed this snow into wind slabs on atypical southerly slopes. These wind slabs may linger at high elevations.

The remainder of the snowpack is consolidated and strong.

Weather Summary

Tuesday Night

Increasing clouds with no precipitation, 20 km/h west wind, treeline temperature -3 °C.

Wednesday

Cloudy with light snowfall, accumulation 1 to 3 cm, 30 km/h southwest wind, treeline temperature -3 °C, freezing level 600 m.

Thursday

Cloudy with snowfall, accumulation 10 to 20 cm, 60 km/h southwest wind, treeline temperature -2 °C, freezing level 800 m.

Friday

Cloudy with snowfall then clearing, accumulation 5 cm, 20 km/h northwest wind, treeline temperature -2 °C, freezing level 800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

Avalanche Problems

Wind Slabs

Wind slabs may linger on atypical southerly slopes at high elevations. Assess for them prior to committing to large terrain features.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2