Bollettino valanghe

Glacier

Apr 4 – 5, 2026Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 6 months ago

Pericolo valanghe

Mon
Tue
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
2 · Moderato
Apri la mappa completa

In sintesi

A dramatic rise in temperature will weaken cornices in the alpine and cause wet avalanches at lower elevations.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–1.5

    Wind slab may become more reactive as temperatures warm up. Use caution near ridgetop and in leeward terrain

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1.5–2.5

    Mature cornices may become reactive with the high freezing levels and large diurnal temperature swings. Be aware of your overhead hazard and avoid exposure.

  • Loose Wet

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

    Wet loose avalanches are likely in steep terrain during the heat of the day. Wet slab avalanche activity is possible as well, particularly in areas where moist snow sits over a crust.

Confidence

Moderate

  • We are confident that there are weak cornices, but uncertain about how likely they are to trigger.
  • We are uncertain due to variable freezing levels.

Avalanche Summary

No notable natural avalanches have been observed over the last few days in Glacier park. See MIN report for small, human triggered wind slab on Wednesday.

Near neighbours have been reporting cornice failures this week, both natural and explosive triggered.

A widespread, natural avalanche cycle occurred up to size 4.0 on Mar 19-20 during the atmospheric river. Check out pics from this exceptional avalanche cycle in the MIN Reports.

Snowpack Summary

A widespread sun crust can be found near the surface on solar aspects. Sheltered polar alpine terrain holds dry, loose snow sitting over a firm crust. Wind slabs might be lingering in exposed terrain.

Large cornices can found on ridgetops.

A series of crusts formed in March are present down 50-150 cm.

Travel can be challenging below treeline with frozen tree bombs and huge avalanche debris from the mid-March atmospheric river.

Weather Summary

Rising freezing levels.

Tonight Clear periods. Alpine low -3°C. Ridge wind light gusting to 35km/h. Freezing level (FZL) 800m

Sun Mix of sun and cloud. No precipitation. Alp High 3°C. Wind S 10-20km/h. FZL 2400m

Mon Sun and cloud with isolated showers. Trace precipitation. Alp High 5°C. Wind S 20 gusting to 65. FZL 2600m

Tues Cloudy, scattered flurries, 4cm. High 0°C. Wind W 15gusting to 75km/h. FZL 1900m

Terrain and Travel Advice

  • Avoid travelling on slopes below cornices.
  • Loose avalanches may start small, but they can grow and push you into dangerous terrain.
  • Be careful as you transition into wind-affected terrain.

Regioni coperte