Bulletin d’avalanche

Kananaskis

Apr 6 – 7, 2014Alberta Parks
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Archivé · expiré 12 years ago

Danger d’avalanche

Tue
Wed
Alpin
3 · Marqué
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

Warm temps and strong winds are forecast for Monday.  The warm temps may decrease stability on solar aspects as conditions warm up so keep a keen eye on overhead slopes in relation to the sun.  Best skiing is on North aspects.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–6
    This layer is still sensitive to trigger from thin or weak snowpack areas which are plentiful in KCountry.  Choose routes that avoid thin spots especially on solar aspects later in the day. 

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    1–3
    Loose wet slides will occur as temperatures warm up.  These smaller slides may step down and initiate a slab on deeper weak layers.

Confidence

Fair - Timing or intensity of solar radiation is uncertain

Weather Forecast

Warm temperatures and strong SW winds are forecast for Monday.  Freezing levels are forecast to climb up to 2200m (roughly treeline) so we can expectr there to be some decreases in stability later in the day as conditions warm up.  Cloudy skies are forecast but if the sun does come out, expect there to be a rapid decrease in stability on solar aspects related to this daytime warming.  No new snow is forecast.

Avalanche Summary

One new sz two slide was observed on a N aspect in the Goat range towards the northern end of the forecast region.  This slide failed in facets on rocks at the ground but was likely triggerred by a cornice collapse.

Snowpack Summary

Very little change out there of late.  Temperature crusts are being found on all aspects up to 2000m and up to ridgelines on solar aspects.  The 0210 layer is down 100-150cm throughout the forecast region and despite a decline in recent natural activity on this layer, it is still our main concern in the snowpack.  We are not into a cycle of good melts and freezes and a true spring snowpack as of yet.  Conditions are still very wintery at this time...

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