Bulletin d’avalanche

Kananaskis

Apr 2 – 3, 2021Avalanche Canada
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Archivé · expiré 5 years ago

Danger d’avalanche

Sun
Mon
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

The north aspects deliver for dry snow, but not soft snow. Widespread wind effect is very apparent and makes for some tricky, unpredictable, yet entertaining skiing. 

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1.5–2.5

    These kept us on our toes today from a ski quality perspective as well as an avalanche problem. They seem to be variable in hardness and location despite being widespread. Ski quality could be described as "engaging".

Confidence

High -

Weather Forecast

It looks like tomorrow will have a little more sun than Friday. Expect the solar input to be strong, especially with a thin layer of cloud. Winds will be light from the SW and maybe there will be a few flurries. Fingers crossed. The daytime high will be around zero, with a freezing level of 2200m. I wish I had better news for later in the week, but the storm I mentioned yesterday has been delayed, and it appears to be weaker than expected. 

Avalanche Summary

We witnessed one small powder cloud on the south side of Hero's knob today at 10am. Not sure where it initiated, but it would have been alpine in nature. No slab visible.

Snowpack Summary

Valley bottom snow was moist by 11am. Treeline hung in there and still had dry snow as of 1200. It likely stayed that way due to cloud cover. The most notable snowpack feature is the widespread wind effect. Any open area at treeline and up has a 5-10cm thick windslab. There are sheltered areas at treeline holding good snow, but they are small and isolated. 

Terrain and Travel

  • Avoid steep convex slopes.
  • Cornices become weak with daytime heating or solar exposure.
  • Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet

Régions couvertes