Bollettino valanghe

Lizard-Flathead

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
Apri la mappa completa

In sintesi

Dry snow and lack of wind has made for good skiing. If the winds increase from light to moderate you may find touchy storm slabs in wind affected terrain.

Problemi valanghivi

  • Loose Dry

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2
    Expect sluffing in steep terrain.

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    The winds are the primary factor driving the avalanche danger currently. Currently storm slabs are not present in many areas but if the winds increase to moderate you may find storm slabs reactive to human triggers in wind affected terrain.

Confidence

Moderate - Wind speed and direction is uncertain

Weather Forecast

Tuesday: Sunny / Light-moderate northwesterly winds / Average temperature at treeline -18 C.Wednesday: Mix of sun and cloud / Light southerly winds / Average temperature at treeline -15 C.Thursday: Cloudy with flurries / Light easterly winds / Average temperature at treeline -15 C.

Avalanche Summary

On Sunday, numerous natural and skier triggered size 1-1.5 loose dry avalanches were reported throughout the region.

Snowpack Summary

Much of the region received 10-15 cm of new snow with locally higher amounts (30-45 cm) around Fernie. So far this new snow has fallen with no wind and made for great skiing. If winds increase, expect touchy soft slabs to form in wind affected terrain. This new snow is sitting on top of a mixture of surface hoar and weak surface facets which means the storm snow could become quite reactive when it settles into a slab. The mid pack is reported to be well settled. Reports suggest typical treeline snow depths are around 120-170 cm, but a report from the east side of region indicated a much lower snow depth of around 90 cm. Limited reports suggest the crust from the middle of November is down 50-80 cm and the crust from early November is down 80-110 cm.

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