Boletín de aludes

Purcells

Mar 8, 2018Avalanche Canada
Ver en el mapa
Archivado · caducó 9 years ago

Peligro de aludes

Fri
Sat
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
Abrir el mapa completo

Lo esencial

Southern areas may get extra snow on Thursday. Choose conservative terrain if it's snowing heavily.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    New snow and wind may build new wind slabs. Stay well away from large looming cornices.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1.5–3
    Persistent slabs are most likely to be triggered with a large load like cornice fall; or by a person in a thin or variable-depth snowpack spot.

Confidence

Moderate - Forecast snowfall amounts are uncertain on Thursday

Weather Forecast

THURSDAY: Cloudy. Around 10-15 cm snow. Treeline temperature near -4. Moderate southerly winds.FRIDAY: Mix of sun and cloud. Treeline temperature near -3. Light winds.SATURDAY: Mainly sunny. Treeline temperature near -1. Light winds.

Avalanche Summary

Wednesday was pretty quiet. A natural cycle of wind slabs and storm slabs to size 2.5 was reported on Sunday/Monday/Tuesday. Recent explosives testing has mostly produced storm slabs or wind slabs, and one persistent slab on a north aspect.

Snowpack Summary

Solar aspects have developed new sun crusts, which new snow may sluff easily on. Recent storm snow and wind slabs continue to settle. A couple of layers buried in mid-late February (down around 50-100 cm) are variably reactive, but both have the potential to create surprisingly large avalanches if triggered. Initially, these interfaces were most reactive on solar aspects, where they present as buried sun crusts. However, persistent slabs have been triggered on shady aspects too, where surface hoar and/or facets exist.Deeper persistent weak layers from January and December are generally considered dormant, but could wake up with forecast warming, a surface avalanche stepping down, cornice fall, or a human trigger in a shallow or variable-depth snowpack area. These layers consist of sun crust, surface hoar and/or facets. Facets linger at the base of the snowpack.

Regiones cubiertas