Bollettino valanghe

South Rockies

Mar 30 – 31, 2024Avalanche Canada
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Archiviato · scaduto 3 years ago

Pericolo valanghe

Mon
Tue
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

20 to 30 cm of recent snow and southwest wind may have formed wind slabs in isolated locations below alpine ridgetops.

Use caution when approaching steep and rocky terrian.

Problemi valanghivi

  • Wind Slabs

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

    20 to 30 cm of recent snow and southwest wind may have formed wind slabs in isolated locations below alpine ridgetops.

  • Loose Wet

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

    Expect the sunshine to trigger wet loose avalanches on sunny aspects at all elevations.

Avalanche Summary

Several rider triggered size 1 dry loose avalanches were reported on Friday.

Data is limited in this region. Please consider posting your observations to the Mountain Information Network.

Confidence

High

Snowpack Summary

Strong solar radiation has formed a surface crust everywhere except north facing terrian at upper elevations.

20 to 30 cm of recent snow overlies a crust on all but north facing aspects in the alpine.

A widespread crust with facets above is down 80 to 120 cm. Steep or convex terrain features with a shallow or thin to thick snowpack at treeline and above are the places where it may still be possible to trigger this layer with large loads.

Weather Summary

Saturday Night

Partly cloudy. 20 to 30 km/h northeast ridgetop wind. Treeline temperature -7° C. Freezing level valley bottom.

Sunday

Mix of sun and cloud. 10 to 20 km/h variable direction ridgetop wind. Treeline temperature -1° C. Freezing level 1900 m.

Monday

Sunny. 20 to 30 km/h northwest ridgetop wind. Treeline temperature 5° C. Freezing level 2600 m.

Tuesday

Sunny. 30 to 40 km/h west ridgetop wind. Treeline temperature 8° C. Freezing level 3100 m.

Check out the Mountain Weather Forecast for additional weather information.

Tuesday

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
  • If triggered loose wet avalanches may step down to deeper layers resulting in larger avalanches.
  • Cornice failure may trigger large avalanches.

Regioni coperte