Bulletin d’avalanche

Kananaskis

Mar 7 – 8, 2015Alberta Parks
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Archivé · expiré 12 years ago

Danger d’avalanche

Mon
Tue
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

It's a challenge to find good skiing, but on the flip side conditions are great for longer tours and alpine travel. PW

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2
    Winds will be shifting to the west. Evaluate lee features, but be mindful of the northerly winds we just had.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–4
    With the forecasted mild temps in the alpine, be aware of the strong effect of the sun this time of year should it appear. Large triggers such as cornices will weaken and could trigger this basal weakness.

Confidence

Good

Weather Forecast

Overnight alpine lows will be near -8, and will warm to -4 tomorrow. It will be mainly cloudy but keep an eye out for any solar effect should the sun come out. Ridge top winds will be from the west around 35km/hr tomorrow and no precipitation is expected. The freezing level is expected to climb to 1700m.

Avalanche Summary

No new avalanches observed today.

Snowpack Summary

Trace amounts of snow today accompanied by moderate winds and mild temperatures have not changed the hazard levels. Existing alpine surfaces are windslabs of various densities. At treeline wind slabs up to 20cm and of varying densities exist in immediate lee features at ridge tops and open treeline areas. Below treeline is still a breakable crust buried beneath 5-10 cm's of snow. It was mainly cloudy today, but the sun did make a periodic appearance and although brief it's effect is strong at this time of year. Combined with mild temps there maybe a slight crust tomorrow morning on steeper solar aspects to 2300m.

Régions couvertes