Bollettino valanghe

South Columbia

Apr 13 – 14, 2016Avalanche Canada
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Archiviato · scaduto 10 years ago

Pericolo valanghe

Fri
Sat
Alta quota
Senza grado
Limite del bosco
Senza grado
Sotto il limite
Senza grado
Apri la mappa completa

In sintesi

Spring Conditions. If the sun comes out, the strong solar radiation will heat up the snowpack rapidly and avalanche danger will increase. New wind slabs may not be well bonded to the old surface crust.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Thin new wind slabs may be easy to trigger when they are exposed to strong solar radiation. Wind slabs may not be well bonded to the old surface crust.

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–4
    If the sun comes out, it wont take long for solar aspects to heat up and result in natural cornice falls.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–2
    Loose wet avalanche activity is expected to increase with exposure to strong solar radiation and climbing freezing levels.

Weather Forecast

Mostly cloudy overnight with light to moderate northerly winds developing and freezing levels down close to 1000 metres by morning. Mix of sun and cloud on Thursday with a chance of scattered convective flurries and freezing levels climbing to 2000 metres. Overcast with convective flurries on Friday combined with light southerly winds. Freezing levels starting out near 1500 metres and rising up to at least 2000 metres. Not much of a re-freeze expected for Saturday morning, mostly sunny with freezing levels climbing to at least 2500 metres.

Avalanche Summary

No new avalanches reported. Most commercial operations have closed for the season, and data is becoming sparse.

Snowpack Summary

The snow surface is currently going through a typical spring melt-freeze cycle on all aspects and at all elevations, except possibly high true-north slopes which could be holding onto cold snow. The strength (thickness) of the surface crust and how quickly it breaks down during the day are important factors to focus on. Forecast wind and snow may bring back a winter feel above treeline for a day or two. Watch for new wind slabs that may not bond to hard old surface crusts. If the sun comes out, conditions may change rapidly and crusts may break down when exposed to strong solar radiation.

Regioni coperte