Bollettino valanghe

Northwest Coastal

Mar 19 – 20, 2024Avalanche Canada
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Archiviato · scaduto 3 years ago

Pericolo valanghe

Thu
Fri
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
2 · Moderato

In sintesi

A widespread surface crust makes for generally safe conditions. Scale back your terrain choice as the surface snow deteriorates and weakens with daytime warming and sunny conditions.

Problemi valanghivi

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3.5

    Persistent slab avalanches remain possible, especially later in the day as the surface snow deteriorates, and weakens from daytime warming and solar effect.

  • Loose Wet

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

    Wet loose avalanche likelihood will increase throughout the day with daytime warming and sunny conditions, particularly on steep south-facing terrain.

Snowpack Summary

A widespread melt-freeze crust exists on the surface. Expect the crust to deteriorate, and weaken at lower elevations and on south-facing slopes throughout the day.

Various weak layers, including crusts, facets, and/or surface hoar exist approximately 90 and 180 cm below the surface.

Confidence

High

Avalanche Summary

Natural wet loose avalanche activity continues to be reported, primarily below treeline and on steep south-facing terrain.

The widespread, natural avalanche cycle reported over the weekend appears to have ended.

Weather Summary

Tuesday Night

Partly cloudy with 0 to 2 cm of snow. 10 to 30 km/h east ridgetop winds. Treeline temperature -1 °C. Freezing level 1400 m.

Wednesday

Mostly sunny. 10 to 30 km/h east ridgetop wind. Treeline temperature -3 °C. Freezing level 1200 m.

Thursday

Mostly sunny. 0 to 20 km/h east ridegtop wind. Treeline temperature -3 °C. Freezing level 1100 m.

Friday

Mostly sunny. 20 to 40 km/h northeast ridgetop wind. Treeline temperature -9 °C. Freezing level 500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep in mind that human triggering potential persists as natural avalanching tapers off.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
  • A moist or wet snow surface, pinwheeling and natural avalanches are all indicators of a weakening snowpack.

Regioni coperte