Bollettino valanghe

South Coast

Jan 11 – 12, 2015Avalanche Canada
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Archiviato · scaduto 12 years ago

Pericolo valanghe

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

In sintesi

Forecast flurries for the next few days could produce wind slabs at treeline and above.

Problemi valanghivi

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    2–5
    A thick crust has capped the snowpack in most areas, but wind slabs and surface hoar may still exist on northerly and shaded areas at treeline and above.

Confidence

Fair - Due to the number and quality of field observations

Weather Forecast

Expect light flurries in the southern portion of the forecast region on Monday and possibly Tuesday, then a brief drying-out on Wednesday before the next pulse of Pacific moisture arrives on Thursday bringing flurries and a possible 5 to 10 cm of snow at higher elevations.Freezing levels around 600m throughout out the forecast period.

Avalanche Summary

No recent avalanches have been reported, but reports of solar warming have some areas talking about decreasing stability in the afternoon on step solar aspects, with size 1.5 avalanches possible.

Snowpack Summary

A thick supportive surface crust has capped the snowpack in most, if not all parts of the forecast region. Below the crust is the most recent storm snow which is around 50-70cm deep and sits on a previously variable snow surface that included wind affected surfaces, a freezing rain crust or sun crust, and/or surface hoar or sugary facets in sheltered terrain. In the middle of the snowpack there exists a mid-December surface hoar or crust/facet weak layers. These are now typically buried 1m or more. The old surface hoar layer may be found in sheltered shady areas at and below treeline, while the slightly deeper crust/facet layer is expected to be more widespread and variable.

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