Bollettino valanghe

Purcells

Mar 27 – 28, 2025Avalanche Canada
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Archiviato · scaduto 2 years ago

Pericolo valanghe

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

In sintesi

There is uncertainty with the speed of recovery of the snowpack. Maintain conservative terrain choices.

Problemi valanghivi

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    2–3

    Several buried weak layers exist throughout the snowpack. These layers remain active while the snowpack adjusts to the most recent stress.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    2.5–3.5

    Weak layers near the bottom of the snowpack continue to be a concern. Avalanches on these layers will be large, destructive, and may run full path.

Confidence

Moderate

Avalanche Summary

A widespread, large, destructive avalanche cycle occurred across the region, involving persistent, and deep persistent slab avalanches. Wet loose and wet slab activity has been widespread throughout the region.

Read the Forecaster Blog for an opportunity to reflect on this week's widespread avalanche activity.

Snowpack Summary

A dusting of new snow will bury a variety of surfaces, including moist snow and crusts. Below lies a complex snowpack with several weak layers:

  • Where intact, an interface from early March, 30 to 50 cm deep, consists of a crust on sunny slopes and lower elevations, and surface hoar or facets in sheltered, shaded upper elevations.

  • Persistent weak layers from February and January, including crusts, facets, and surface hoar, are buried 50 to 100 cm deep and remain a concern.

  • The bottom of the snowpack is composed of large facets.

Weather Summary

Thursday Night

Mostly cloudy, isolated flurries, 1 to 2 cm. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Friday

Mostly cloudy, scattered flurries, 1 to 2 cm. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 2000 m.

Saturday

Mostly cloudy, scattered flurries 3 to 5 cm. 10 to 15 km/h southwest wind. Treeline temperature 0 °C. Freezing level 2000 m.

Sunday

Partly cloudy, isolated flurries, 1 to 2 cm. 5 to 10 km/h southwest ridgetop wind. Treeline temperatures -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • In times of uncertainty, conservative terrain choices are our best defense.
  • Be mindful that deep instabilities are still present and have produced recent large avalanches.

Regioni coperte