Bollettino valanghe

South Columbia

Nov 29, 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

Recently formed storm slabs may still be reactive to human triggers. Use additional caution in shallow, rocky, or wind affected alpine terrain.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Recently formed wind slabs may remain reactive to human triggers for several days.
  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    2–3
    Storm slabs may remain touchy even though the storms have passed, especially at higher elevations and on wind-loaded features.

Avalanche Summary

No new avalanches were reported in this region on Sunday. However, a natural size 3 and several size 2 avalanches were reported on the east side of Rogers Pass in the highway corridor.

Confidence

Low - Due to the number of field observations

Weather Forecast

Tuesday: Mix of sun and cloud / light southerly winds / Freezing level around 900m. Wednesday: Possible flurries / Light westerly winds / Freezing level around 1200m. Thursday: Mix of sun and cloud / Light northwesterly winds / Freezing level around 900m.

Snowpack Summary

30-70 cm of recent snow formed storm and wind slabs that were reactive to human triggers over the weekend. These slabs will likely become less reactive in the coming days but will still require careful slope by slope evaluation. Reports suggest the the mid-November crust down 60-120 cm is well bonded to the overlying snow. Below the crust the snowpack is generally well settled. Limited observations suggest snowpack depths vary greatly throughout the region and are on average 100-180 cm at treeline elevations with generally less snow in the southern portion of the region.

Regioni coperte