Bollettino valanghe

Jasper

Mar 5 – 6, 2021
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Archiviato · scaduto 6 years ago

Pericolo valanghe

Sat
Sun
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
3 · Marcato

In sintesi

The warm temperatures and strong solar effect will continue to weaken the snowpack.

A Special Avalanche Warning is in effect immediately, through Saturday.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–3

    Wind slabs in the alpine and exposed treeline features have the potential for wide propagations across connected features.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2.5

    Afternoon sun is packing a punch on lower elevation, SW through W slopes. Ice climbers: be extremely cautious. Overhead hazards can catch sun early.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1.5–3

    Caution in thin facetted snowpack areas where triggering is more likely. This is a low probability but high consequence problem.

Weather Forecast

Friday: Cloudy with scattered flurries (4cm); alpine: High -2 °C; ridge wind southwest: 20 km/h; freezing level: 2000m.

Saturday: Flurries (9cm); alpine: Low -9 °C, High -4 °C; light ridge wind; freezing level: 1500m.

Sunday: Cloudy with sunny periods; alpine: Low -13 °C, High -8 °C; ridge wind southwest: 10-30 km/h; freezing level: valley bottom.

Snowpack Summary

Warm temperature have resulted in warm moist conditions at TL and BTL. The snowpack is highly variable throughout the forecast region. A moist upper snowpack overlies a supportive mid-pack in the Icefields area. Shallow snowpack areas are week and failing in test results.

Avalanche Summary

Numerous loose wet and slab avalanches on solar aspects up to size 2, mostly at TL and BTL throughout the forecast region.

Confidence

Regioni coperte