Bollettino valanghe

Purcells

Jan 27 – 28, 2014Avalanche Canada
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Archiviato · scaduto 13 years ago

Pericolo valanghe

Wed
Thu
Alta quota
1 · Debole
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

'Low Hazard' does not mean 'No Hazard' and isolated avalanches may still be possible. Check out this blog post for further discussion.

Problemi valanghivi

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    3–6
    A crust/facet weakness near the base of the snowpack continues to linger but is typically unreactive to triggering. This remains a low probability, high consequence problem for some areas of the region.

Confidence

Good

Weather Forecast

The ridge of high pressure begins to weaken on Tuesday and will break down on Wednesday. Light precipitation is expected for Wednesday and Thursday.Tuesday: A mix of sun and cloud, dry conditions, treeline temperatures around -10C, light SW winds at treelineWednesday: Cloudy, snowfall 3-5cm, treeline temperatures around -8C, light SW winds at treelineThursday: Cloudy, snowfall 4-6cm, treeline temperatures around -10C, light NW winds at treeline

Avalanche Summary

No new avalanches have been reported since the solar activity on Friday and Saturday.

Snowpack Summary

The recent dry, warm weather has generally consolidated the upper snowpack. As temperatures now begin to cool, stability in the upper snowpack should increase further. Keep in mind that 'Low Hazard' does not mean 'No Hazard' and that residual risk of avalanches still exists. Old, stubborn wind slabs may still exist in isolated areas. A basal facet/crust combo (weak sugary snow above and below a crust) near the ground is still a concern in some areas. The depth of this layer makes triggering an avalanche on it unlikely (maybe a heavy load on a thin spot in steep terrain, rapid temperature change, or cornice fall), but the consequences would be large and very destructive.Large surface hoar is reported to have formed in sheltered areas at all elevations with the exception of open south-facing slopes where the sun has caused melting and formed a sun crust.

Regioni coperte