Bollettino valanghe

Jasper

Apr 2 – 3, 2026Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 6 months ago

Pericolo valanghe

Sat
Sun
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
Apri la mappa completa

In sintesi

Recent avalanches have been triggered by rock or cornice fall. Consider large loads when choosing terrain.

Dig and investigate persistent weak layers before committing to slopes.

The best skiing is on sheltered slopes in the alpine and at treeline.

Problemi valanghivi

  • Wind Slabs

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

    Watch for pockets of reactive wind slab in the alpine.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    2–4

    The March 20 crust is buried 20-60cm at tree line and below. The Jan 24 facets are 80 to 120cm deep. Dig down to investigate how these layers have adapted to the load. Slopes that have not released naturally should be treated with caution.

Confidence

High

  • We are confident due to a stable weather pattern.

Avalanche Summary

A rockfall triggered a large slab avalanche on the South face of Pyramid Mountain earlier this week (photo).

A size 3 persistent slab was observed on the West face of Mt. McGuire on April 1st originating in steep terrain.

Snowpack Summary

Around 15cm of new snow has fallen this week, redistributed by south and westerly wind in the alpine. Below, a firm crust is supportive at low elevations but gradually disappears above tree line, around 2300 m. A deeper persistent weak layer from late January exists down 80–120 cm. The lower snowpack is generally strong although weak basal facets can still be found in shallow areas.

Weather Summary

Friday

Mainly cloudy with isolated flurries.

Precipitation: Trace.

Alpine temperature: High -5 °C.

Ridge wind southwest: 15-35 km/h.

Freezing level: 1800 metres

Saturday

Cloudy with sunny periods and isolated flurries.

Precipitation: Trace.

Alpine temperature: Low -7 °C, High -6 °C.

Ridge wind west: 15-35 km/h.

Freezing level: 1800 metres

Sunday

Mainly cloudy with isolated flurries.

Precipitation: Trace.

Alpine temperature: Low -8 °C, High -3 °C.

Light ridge wind.

Freezing level: 2100 metres.

Terrain and Travel Advice

  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • Cornice failures could trigger large and destructive avalanches.
  • Approach lee and cross-loaded slopes with caution.

Regioni coperte