Bollettino valanghe

South Coast

Mar 1 – 2, 2016Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 11 years ago

Pericolo valanghe

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

In sintesi

Give the snowpack a chance to settle and adjust to the new load. Pick conservative terrain especially if the wind is blowing

Problemi valanghivi

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–3
    Heavy snow and wind are resulting in a prolonged natural avalanche cycle. Human triggered avalanches are likely on steep unsupported slopes and in wind loaded features. Watch out for overhead hazards like cornices.

Confidence

High - Timing of incoming weather systems is uncertain on Wednesday

Weather Forecast

WEDNESDAY: heavy snow continues overnight with another 10 expected by the end of the day, mainly light southwesterly winds, 1800m freezing level. THURSDAY: 10cm of new snow, moderate southwest winds, 1800m freezing level. FRIDAY: heavy snow, strong southerly winds, 1800m freezing level.

Avalanche Summary

Isolated artificially and naturally triggered storm slab, wind slab and cornice avalanches continue to be reported. Cornices are large and fragile, and may fail under the weight of a person. Natural avalanche activity is expected to peak overnight on Tuesday, although human triggering will remain likely through the forecast period.

Snowpack Summary

Up to 30cm of new snow and strong winds have formed widespread fresh storm slabs. The upper snowpack sits above a crust that was reported on all aspects and elevations before the weekend. Isolated pockets of surface hoar were also reported in high north facing terrain that stayed cool prior to the storm. The mid-pack is generally well settled. A layer of surface hoar buried in early January can now be found down 1-2 m. In most places it is thought to be capped by a thick widespread crust. However, in the north of the region it has produced recent isolated hard sudden planar failures in snow pit test from shallow areas.

Regioni coperte