Bollettino valanghe

Jasper

Mar 7 – 8, 2021
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Archiviato · scaduto 6 years ago

Pericolo valanghe

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

In sintesi

Problemi valanghivi

  • Wind Slabs

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

    Ongoing moderate SW winds will continue to form slabs in the alpine and exposed treeline features.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    The sun is packing a strong punch on south through west aspects when it comes out.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3

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

Weather Forecast

Sunday: Sunny with cloudy periods and isolated flurries.

Precipitation: Trace.

Alpine temperature: High -7 C.

Ridge wind southwest: 15 km/h gusting to 45 km/h.

Monday: A mix of sun and cloud.

Precipitation: Nil.

Alpine temperature: Low -12 C, High -9 C.

Mostly light ridge wind occasionally gusting to 35 km/h.

Snowpack Summary

5-10cm of new snow at treeline. Warm temps and high solar input have created crusts and moist snow on solar aspects at TL and BTL. Continuing SW winds have extensively redistributed the snow pack at TL and ALP. The midpack is supportive in deep areas, but shallow snowpack areas are weak and failing in buried facet layers in test results.

Avalanche Summary

Numerous loose wet and slab avalanches on solar aspects up to size 2, mostly at TL and BTL observed on Thursday into Friday. Only smaller activity observed on Saturday thanks to cooler temps. Several large natural slab avalanches observed in high alpine features over the past week, many were step downs from wind slabs or were cornice triggered.

Confidence

Timing or intensity of solar radiation is uncertain

Regioni coperte