Bollettino valanghe

Kananaskis

Mar 16 – 17, 2019Alberta Parks
Vedi sulla mappa
Archiviato · scaduto 8 years ago

Pericolo valanghe

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

In sintesi

Solar radiation is forecast to be strong on Sunday.  Solar aspects will see stability decrease as temperatures warm up.  Pay close attention to temps and aspect as you travel. 

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–2
    Windslabs are being found in Alpine terrain and isolated areas at TL up to 20cm thick.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely - Very Likely
    Dimensione
    1–2
    Watch for loose wet slides on solar aspects as temps warm up. Steep thin areas will be more vulnerable to this type of activity.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    2–3
    This layer is still concerning and could be woken up by a skier/rider in a thin shallow snowpack area, warmer temps with some solar radiation or a cornice failure. This problem deserves respect as any resulting avalanche will be full depth.

Confidence

High -

Weather Forecast

No new snow is forecast overnight and freezing levels are supposed to be around 2300m.  The sun is forecast to come out tomorrow with less clouds forecast so be thinking about what aspect you are on related to the time of day.  Done be on solar aspects later in the day as stability will be getting worse due to heat in these areas.

Avalanche Summary

No new avalanche activity was observed observed over the past 24hrs except for isolated loose dry slides from steep unskiable terrain.  Clouds kept the temperature cool and loose wet slides were not a major issue.

Snowpack Summary

Freezing levels on Saturday climbed up to 2200m with isolated moist snow in areas below this elevation.  The previous warm temps have created widespread temperature crusts on solar aspects up to 3000m. Windslabs from the moderate SW winds on Friday are evident in alpine terrain up to 20cm thick. These slabs are overlying the previous facetted surface and if they initiate, they are quick to entrain the weak lower snowpack and run far. Watch for these wind slabs overlying this weak facetted base and also be aware of awakening the lower down basal facets from a thin weak area.

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