Bollettino valanghe

Microwave-Sinclair

Mar 3 – 4, 2025Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 2 years ago

Pericolo valanghe

Wed
Thu
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
2 · Moderato
Apri la mappa completa

In sintesi

Weak layers exist in the snowpack, and conditions are primed for human triggering. Use extra caution around sun-exposed slopes during the heat of the day.

Problemi valanghivi

  • Wind Slabs

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

    Fresh and reactive wind slabs are likely. Wind slabs will be the most sensitive where they overlie facets.

  • Persistent Slabs

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

    Reactive weak layers from January and February exist in the upper 80 cm of the snowpack. New snow, wind, sun, and warming could all add stress to these layers, and human triggering remains a concern.

Confidence

Moderate

Avalanche Summary

On Friday, a natural wind slab (12 hours old) was observed in a zone called the Onion. This released on a north aspect at 1650 m.

On Thursday, the NW Field Team triggered a (size 1.5) wind slab on an east-facing slope at 1740 m. The crown was 40 cm thick, 50 m wide and ran 100 m. It ran on the faceted layer below.

Wind-loaded slopes at upper elevations are most suspect and may be primed for human-triggered slab avalanches through the weekend.

Weather Summary

Sunday Night

Partly cloudy. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -6 °C.. Freezing level dropping to valley bottom overnight.

Monday

Mix of sun and clouds. 20 to 30 km/h east ridgetop wind. Treeline temperature -5 °C.

Tuesday

Mostly sunny. 15 to 30 km/h east ridgetop wind. Treeline temperatures -1. Freezing level 1200 m.

Wednesday

A mix of sun and cloud. 10 to 25 km/h south ridgetop wind. Treeline temperatures 0. Freezing level 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.

Regioni coperte