Bollettino valanghe

South Rockies

Jan 15 – 16, 2013Avalanche Canada
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Archiviato · scaduto 14 years ago

Pericolo valanghe

Thu
Fri
Alta quota
3 · Marcato
Limite del bosco
2 · Moderato
Sotto il limite
2 · Moderato
Apri la mappa completa

In sintesi

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–4
    Strong northwest winds are expected to form new windslabs. Watch for loading in unusual locations.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–5
    This layer may spring back to life if warm temperatures and sunshine develop. Slopes that didn't slide in the last avalanche cycle are of particular concern. Pull back to simple terrain without overhead hazard if it warms up.

Confidence

Fair - Due to variable weather conditions

Weather Forecast

A mix of sun and cloud is expected for the forecast period with light snowfall possible each day. Winds are forecast to be strong from the northwest. Freezing levels are expected to remain at valley bottom; however, there is a strong chance of an inversion each day until Friday.

Avalanche Summary

No new significant avalanche observations have been reported from the region.

Snowpack Summary

New windslabs may exist in unusual locations to strong winds and the northwesterly influence. Below this around 60cm of settled snow rests on a myriad of old surfaces (January 4th interface) that include sun crust on steep south and west facing terrain, surface hoar in sheltered locations at treeline and below and facets everywhere else. The bond at this interface seems to have strengthened somewhat with time. The overlying slab has also settled significantly.The midpack is well settled and strong with one or two (location specific) crusts deep in the snowpack. These crust/facets combos are largely dormant, with the only concern being triggering from a shallow snowpack area or with a heavy trigger.

Regioni coperte