Bollettino valanghe

South Rockies

Mar 18 – 19, 2013Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 14 years ago

Pericolo valanghe

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

In sintesi

The effect of sunshine could cause a spike in avalanche danger on Tuesday.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–3
    Be alert for wind slabs behind ridges and terrain breaks.

  • Loose Dry

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–3
    Recent storm snow can slide easily on a buried crust. It may have enough force to trip you up or carry you into a terrain trap.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–3
    Be wary of travelling on or below steep slopes which are being warmed by direct sun. Storm snow may fail naturally with the influence of solar radiation.

Snowpack Summary

Up to 50 cm snow overlies a crust, which is supportive to at least 2100 m in most areas. Ridge top winds have been from SW and NW directions, creating pockets of wind slab on a variety of lee and cross-loaded slopes. Deeper in the snowpack, a series of crust layers (or isolated surface hoar) makes up the upper snowpack. The mid-pack is reported to be generally well-settled. Cornices are large and fragile in some areas.

Confidence

Fair - Timing or intensity of solar radiation is uncertain on Tuesday

Weather Forecast

Monday night: Light snow. Strong W winds. Alpine temperature near -16.Tuesday: No snow. Sunshine. Moderate to strong W winds. Alpine temperature near -10.Wednesday: Moderate snow. Strong to extreme SW winds. Alpine temperature near -4.Thursday: Moderate to heavy snow. Light to moderate SW winds. Alpine temperature near -8.

Avalanche Summary

Observations were limited during Sunday's storm, but large avalanches were heard running in steep terrain. Skiers also triggered small soft slabs which failed on the buried crust.

Regioni coperte