Bollettino valanghe

Northwest Inland

Feb 10 – 11, 2012Avalanche Canada
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Archiviato · scaduto 15 years ago

Pericolo valanghe

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

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–4
    Old, variable wind slabs are becoming increasingly stubborn and difficult to trigger.

Confidence

Good - -1

Weather Forecast

Saturday: Should stay dry with clouds and light winds that will pick up in the afternoon. Freezing level around 900 m. Overnight Saturday: light precipitation with 2-4 mm expected. Strong southerly winds. Sunday: Lingering flurries, otherwise dry with high pressure building. Freezing level around 700 m. Monday: Dry and sunny. Light winds.

Avalanche Summary

No new avalanches have been reported.

Snowpack Summary

A very light skiff of snow may have buried a surface hoar layer that lies on top of old surfaces comprising crusts and old wind slab. However, with only a centimetre or so of new snow, it's not certain that surface hoar crystals of 5 mm or more would get properly buried. Successive melt-freeze cycles have produced crusts on all aspects at lower elevations as well as on south-facing slopes higher up. The old wind slabs are no longer causing concern in most areas. A facet layer, which formed around 20th January, is buried around 60 cm and is reported to be gaining strength. It showed hard, resistant planar results in a compression test at treeline in the Hankin area on Sunday.

Regioni coperte