Bulletin d’avalanche

Kananaskis

Nov 15 – 16, 2018Alberta Parks
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Archivé · expiré 8 years ago

Danger d’avalanche

Sat
Sun
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
Sans niveau
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Points saillants

15cm of new snow is forecast overnight with strong SW winds.  Be cautious of windslabs building in Alpine areas. 

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    Windslabs will build overngiht with forecast new snow and moderate SW winds.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2.5
    This is still our main concern at the moment. We are having some difficulty determining the max elevation because of difficult travel. Regardless, we do know it is widespread below 2200m and will break down and become touchier as time passes.

Confidence

Moderate - Intensity of incoming weather systems is uncertain on Friday

Weather Forecast

Forecast models are calling for snow overnight on thursday but amounts vary from 5-15cm.  Winds are forecast to decrease into the light range by Friday under a sky that is likely to be a mix of sun and cloud.  We may see some additional windslab development from the forecasted strong winds overnight on Thursday. 

Avalanche Summary

No new avalanche activity was observed or reported on Thursday.

Snowpack Summary

10cm of new snow overnight gives up around 15-20cm of recent storm snow over the past 3 days. This snow has created pockets of windslabs in Alpine areas along ridgelines and in gullies. Otherwise our main concern os for the Oct 26th crust near the "base" of the current snowpack. This layer is down 40-50cm and has a weak facetted layer overlying it. Its likely to be a concern that we talk about for some time. IMPORTANT- Field observations are still very limited at this time.

Régions couvertes