Bollettino valanghe

Dogtooth

Avalanche Canada
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Pericolo valanghe

Sun
Mon
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
2 · Moderato
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Non aggiornato — questo bollettino è scaduto 4 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

A hot sun and rising freezing levels will cause avalanche hazard to rise through the day and over the weekend.

Problemi valanghivi

  • Cornices

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

    Cornices are more likely to fall as the temperature rises.

  • Wind Slabs

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

    Wind slabs may still be triggered by riders in lee areas. These slabs may not bond well with a buried crust.

  • Loose Wet

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

    Wet loose avalanches are likely to occur during calm, sunny periods. Avoid being underneath slopes in the sun.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.
  • We are uncertain about how the timing or intensity of solar radiation will affect the snowpack.

Avalanche Summary

On Thursday, west of Invermere, several storm slabs to size 2.5 failed naturally or were triggered by riders.

On Wednesday, there were a few small (size 1-1.5) natural and rider-controlled wind slabs and two that were remotely triggered by a helicopter.

Please consider submitting a MIN to let us know what you're seeing out there.

Snowpack Summary

20 to 60 cm of recent snow sits on moist snow below treeline or a hard melt-freeze crust in the alpine. Some areas may have weak facets on this crust; information is limited at this time of year, so investigate in your area.

A thick crust from mid-March is 30-80 cm deep, which extends up to about 2400 m. Near Invermere, a weak layer of facets may be found above this crust.

Facets are found near the bottom of the snowpack in shallow alpine snowpack areas. The lower snowpack is strong in deep snowpack areas.

The snowpack continues to melt at lower elevations.

Weather Summary

Friday Night

Clear skies. 20 km/h west ridgetop wind. Treeline temperature -5 °C.

Saturday

Sunny. 20 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 1800 m.

Sunday

Sunny. 30 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Monday

Mostly sunny. 30 km/h west ridgetop wind. Treeline temperature 4 °C. Freezing level 2800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Investigate the bond of the recent snow before committing to your line.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • Even brief periods of direct sun could produce natural avalanches.

Regioni coperte