Bollettino valanghe

Cariboos

Jan 24 – 25, 2012Avalanche Canada
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Archiviato · scaduto 15 years ago

Pericolo valanghe

Thu
Fri
Alta quota
4 · Forte
Limite del bosco
4 · Forte
Sotto il limite
3 · Marcato

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Very Likely
    Dimensione
    2–6
    The new storm on Tuesday is expected to build new windslabs that are expected to be easily triggered by light loads like skiers or riders.
  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Very Likely
    Dimensione
    2–6
    A storm slab is expected to develop due to strong southwest winds, heavy precipitation, and rising freezing levels.

Confidence

Good - -1

Weather Forecast

Heavy precipitation on Tuesday should lighten to flurries by Wednesday mid-morning. Strong southwest winds are expected to continue until Wednesday evening, when the wind should clock to the northwest as a ridge of high pressure builds over the interior. The freezing level is expected to rise to near 1000 metres during the evening on Tuesday, and then drop back to valley bottoms. Thursday and Friday should be drier and cooler with alpine temperatures dropping to about -14.0

Avalanche Summary

Natural avalanches up to size 2.0 reported on east and southeast aspects in the alpine that released in the recent storm snow.

Snowpack Summary

The new storm has developed a thick blanket of dry light snow above the cold dry surface. If this new storm warms up a bit, expect a storm slab to consolidate above this cold relatively weak layer. Watch for new windslabs developing due to forecast strong southwest winds. Some surface facetting during the recent cold spell. Strong temperature gradient in the top 30 cm. Stiff windslabs have developed in the alpine and at treeline. Some areas reporting a crust that is now buried by about 50 cm of cold dry light snow. Strong well settled mid-pack. Cornice structures are weak and have been growing fast, and falling off!

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