Bollettino valanghe

Sea To Sky

Apr 5 – 6, 2018Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 8 years ago

Pericolo valanghe

Sat
Sun
Alta quota
3 · Marcato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
Apri la mappa completa

In sintesi

Avalanche activity is possible on steep solar aspects if the sun peeks out.

Problemi valanghivi

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–2.5
    Large fragile cornices are a hazard in themselves, but can also act as a trigger for large avalanches.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–3
    Persistent slabs are most likely to be triggered with a large load like cornice fall; or by a person in a thin or variable-depth snowpack spot.

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Recent snow and wind have formed slabs which could be triggered with the weight of a person.

Confidence

Moderate - Intensity of incoming weather systems is uncertain on Saturday

Weather Forecast

FRIDAY: Light snow. Moderate southerly winds. Freezing level near 1700 m.SATURDAY: Moderate snow. Light winds. Freezing level near 1800 m.SUNDAY: Light snow. Light winds. Freezing level near 1400 m.Click here for more information in the Mountain Weather Forecast.

Avalanche Summary

Skiers triggered two large persistent slabs on Wednesday. One was reported as a size 3, 50-200 cm deep. Several loose wet avalanches were observed on steep sunny slopes.

Snowpack Summary

Storm snow and wind are combining to create new slabs. Cornices are reported to be large and fragile. New snow will overlie various old surfaces including previous storm snow, melt freeze crusts on sunny aspects, scoured old hard wind slabs and dry snow.A weak layer consisting of surface hoar, facets or a sun crust buried in late March is now down about 60-80 cm. This is patchy in its distribution, but is still producing sporadic large avalanches. It is mostly likely to be problematic on shady aspects between 1900m and 2250m.The mid and lower snowpack are strong and well settled.

Regioni coperte