Bollettino valanghe

Jasper

May 1 – 4, 2025Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto last year

Pericolo valanghe

Sat
Sun
Alta quota
Condizioni primaverili
Limite del bosco
Condizioni primaverili
Sotto il limite
Condizioni primaverili
Apri la mappa completa

In sintesi

CAUTION! We are entering the first period this spring with freezing levels above 3500m and no or limited overnight freeze. This is a ALL MELT, NO FREEZE scenario.

We are also expecting new snow or rain on Saturday night that could increase the avalanche hazard.

Limit your exposure to avalanche terrain.

Problemi valanghivi

  • Cornices

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

  • Loose Wet

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

  • Deep Persistent Slabs

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

    This is combination of midseason persistent weak layers and the weak facets & depth hoar at the bottom of the snowpack.

Confidence

Moderate

Avalanche Summary

No recent observations of large avalanches

Snowpack Summary

Without a good overnight freeze the snowpack is slush to treeline. With a good freeze there are surface crusts on south aspects to mountain top and on north aspect to 2600m. On sheltered northerly slopes above 2600m, soft snow exists and the snowpack remains susceptible to triggering deeper, unstable layers.

Weather Summary

Friday

A mix of sun and cloud.

Precipitation: Nil.

Alpine temperature: High 8 °C.

Ridge wind southwest: 10-20 km/h.

Freezing level: 3600 metres.

Saturday

Showers.

Precipitation: 9 mm.

Alpine temperature: Low 2 °C, High 9 °C.

Ridge wind southwest: 10-30 km/h.

Freezing level: 3200 metres.

Sunday

Flurries.

Accumulation: 8 cm.

Alpine temperature: Low -3 °C, High 2 °C.

Ridge wind northwest: 10-30 km/h.

Freezing level: 2400 metres.

Terrain and Travel Advice

  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • Loose avalanches may step down to deeper layers, resulting in larger avalanches.
  • Travel early on sun-exposed slopes before cornices weaken with daytime warming.

Regioni coperte