Bollettino valanghe

Vancouver Island

Feb 16 – 17, 2023Avalanche Canada
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Archiviato · scaduto 4 years ago

Pericolo valanghe

Sat
Sun
Alta quota
3 · Marcato
Limite del bosco
2 · Moderato
Sotto il limite
2 · Moderato

In sintesi

Carefully assess conditions as you move through terrain. There may be a poor bond between new wind slabs and the underlying crust.

If more than 20cm of new snow is observed treat it as a storm slab.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    Variable winds over the past few days mean that wind slabs could be found on all aspects at treeline and above. The underlying crust may prevent wind slabs from bonding resulting in larger and more reactive slabs.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported in the past few days. We suspect rider triggerable wind slabs will be found on Thursday.

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, a new layer of surface hoar sits above up to 10cm of new snow over a crust. 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

Wednesday Night

Cloudy with up to 10cm of new snow expected. Strong westerly wind and a low of -5 at 1500m.

Thursday

Stormy with up to 15cm of new snow. Light to moderate southerly winds and a high of -4 at 1500m.

Friday

A mix of sun and cloud with the possibility of light flurries bringing trace amounts of new snow. Light to moderate northwest winds and a high of -4 at 1500m.

Saturday

Cloudy with up to 5cm of new snow expected. Light westerly winds and a high of -4 at 1500m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

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