Bollettino valanghe

Long Range Mountains

Avalanche Canada
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Pericolo valanghe

Sun
Mon
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
Senza grado
Non aggiornato — questo bollettino è scaduto 6 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

New snow, cool temperatures and wind over the past week have created great riding conditions.

Stay aware of current avalanche problems and avoid terrain where they may exist.

Problemi valanghivi

  • Wind Slabs

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

    Strong west winds over the past week have loaded predominantly east aspect terrain. Avoid lee areas with deep deposits and areas below ridgetop that present large pillows of deep snow.

  • Cornices

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

    New and sensitive cornices have formed at ridgetop Remain cautious and give these features a wide berth when travelling above or below them.

  • Persistent Slabs

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

    A weak crust with sugary facets has formed on steep sun-exposed slopes. This problem is healing but may persist on isolated south-facing slope. Avoid being on or beneath them for now.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

On Friday near ten mile pond, the field team reported a large avalanche (size 2) that had failed on a south aspect. We suspect this is older than 48 hours and is likely to have failed on the late February persistent slab avalanche problem interface.

We value your field experiences and photos. Please consider submitting your observation via this link to the mountain information network.

Snowpack Summary

30 to 40 cm of new snow that has fallen over the past week. In wind-exposed areas, it has been redistributed by strong west into lee features, forming new wind slabs.

50 to 80 cm deep, on steep southeast through southwest slopes, a crust with weak, sugary facets on top has been observed. If triggered, this layer could produce large to very large avalanches.

The mid and lower snowpack is well settled, with no layers of concern.

Weather Summary

Friday Night
Mostly clear skies. 40 km/h west ridgetop wind. Treeline temperature -12 °C.

Saturday
Mix of sun and clouds. 70 km/h west ridgetop wind. Treeline temperature -8 °C.

Sunday
Cloudy. 40 to 65 mm of rain at treeline. 80 km/h southwest ridgetop wind. Treeline temperature 2 °C.

Monday
Mostly cloudy. 5 to 10 mm of rain at treeline. 40 km/h west ridgetop wind. Treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Recent strong wind means wind slabs may be found farther downslope than expected.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.

Regioni coperte