Bollettino valanghe

Northwest Coastal

Apr 15 – 16, 2012Avalanche Canada
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Archiviato · scaduto 14 years ago

Pericolo valanghe

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

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–6
    New wind slabs may develop with forecast snow and wind. Be alert for these behind ridges and terrain breaks.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–6
    Loose wet avalanches are most likely during periods of warming from rainfall or sunshine. These can push you around, entrain mass and become surprisingly large.

  • Wet Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–7
    Warm temperatures or rain may continue to weaken the snowpack, leading to full-depth releases. Avoid traveling on or underneath any slopes which sport glide cracks.

Avalanche Summary

Several natural glide avalanches were reported this week, in the size 2-3.5 range. Wet loose avalanches up to size 2.5 were also observed in response to warming from rainfall and sunshine.

Confidence

Poor - Timing, track, or intensity of incoming weather is uncertain for the entire period

Weather Forecast

A series of frontal disturbances will affect the region over the next few days. The timing and intensity of these systems is uncertain. Freezing levels are also uncertain.Monday: Light to moderate precipitation. Moderate southerly winds. Freezing level around 1400 m. Tuesday: Cloud and light precipitation. Light winds. Freezing level around 1000 m. Wednesday: Light to moderate precipitation is possible, with moderate SW winds.

Snowpack Summary

Glide cracks have opened up and pose the threat of large, full-depth releases, especially on steep rocky terrain features at low elevations. Large cornices and ice cliffs pose a threat from above. At this time of year, snowpack stability tends to decrease during times of warming (e.g. on slopes receiving sunshine, during rainfall, in the afternoon and at low elevations) and improve when the surface is frozen. Lately, a lack of consistent overnight freezing has left the snowpack weak and unconsolidated, although some re-freezing has been reported in some areas.

Regioni coperte