Bollettino valanghe

North Columbia

Dec 13, 2016Avalanche Canada
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Archiviato · scaduto 10 years ago

Pericolo valanghe

Tue
Wed
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole

In sintesi

If the wind picks-up, new reactive wind slabs may form

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Wind slabs are reported to exist at treeline and in the alpine. Watch for conditions that change with aspect and elevation.

Confidence

Moderate - Wind speed and direction is uncertain on Tuesday

Weather Forecast

Tuesday: Clear skies / Light north wind / Alpine temperature of -17Wednesday: Sunny with cloudy periods / Light south wind / Alpine temperature of -10Thursday: Mix of sun and cloud / Light to moderate northerly wind / Alpine temperature -8

Avalanche Summary

In recent days, a few skier triggered wind slabs size to 1.0 were reported at treeline and in the alpine.

Snowpack Summary

In most areas there is 30-50 cm of recent low density storm snow that has stayed unconsolidated except where it has been transported into wind slabs. The surface snow has been facetting due to the cold temperatures, and some surface hoar has been developing in isolated areas. The mid-pack has been reported to be well settled above above a crust that was buried in mid-november. This crust may be buried less than a metre to close to 2 metres deep, depending on elevation and previous exposure to winds. Snowpack tests on the crust have shown variable results from sudden to no result. Professionals continue to monitor this crust and are watching for facet development above and below that may increase reactivity. The basal layers of the snowpack continue to be reported to be moist in some of the deeper snowpack areas of the region.

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