Bollettino valanghe

Northwest Inland

Nov 28 – 29, 2015Avalanche Canada
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Archiviato · scaduto 11 years ago

Pericolo valanghe

Mon
Tue
Alta quota
Senza grado
Limite del bosco
Senza grado
Sotto il limite
Senza grado

In sintesi

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Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–3
    Wind slabs may be lurking near, or well below, ridge crests. Conditions are highly variable, so be alert to hollow, drummy sounds and changes in the feel of the snow as you travel.
  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–3
    Unusually warm alpine temperatures may weaken surface snow and lead to loose wet avalanches.

Confidence

Poor - Due to the number of field observations

Weather Forecast

High pressure, dry conditions and warm alpine temperatures are expected to continue until Monday. Valley cloud is likely on Sunday. Light snow is expected to begin late Monday (around 5 cm overnight), with strong southerly winds. Light snow continues on Tuesday. Confidence in the intensity and timing of this system is low.For more details check out avalanche.ca/weather

Avalanche Summary

Naturally triggered loose wet avalanches were observed in sunny rock outcrops this week. Glide slabs have also been active on a variety of aspects.

Snowpack Summary

So far, we only have limited information from the field. Initial reports suggest that there is little snow below treeline. Recent outflow winds have created variable wind slabs and crusts at higher elevations. In some places, wind slabs may overlie a crust, surface hoar or facets. A persistent weak layer exists at the base of the snowpack in the north of the region, however I am not sure how widespread this is.Unusually warm temperatures are weakening surface snow layers.

Regioni coperte