Avalanche forecast

Kananaskis

Mar 30 – 31, 2018Alberta Parks
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Archived · expired 9 years ago

Avalanche danger

Sun
Mon
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

High winds and new snow are keeping the hazard consistent. In addition to our 3 main problems, there may be a loose dry issue tomorrow as the cold new snow sluffs off the harder layers beneath.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1.5–2.5
    These are widespread, but of particular concern in crossloaded features.

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2
    Expect these to grow with the new snow and wind. Minimize exposure as you travel beneath, or above them.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1.5–2.5
    This layer's depth varies based on aspect. In lee areas, it could be 40-60 deep.

Weather Forecast

This upslope storm will taper, but flurries will continue overnight giving 7cm. Winds will gust to 45 km/hr from the northeast. -20C is the forecasted low for tonight!! Tomorrow will be a sun/cloud mix with a high of 012.

Confidence

High -

Avalanche Summary

A 2.5 loose dry out of steep alpine terrain mid afternoon.

Snowpack Summary

10cm new snow in the last 24 hours with moderate to strong variable winds. Fresh wind slabs on all aspects in alpine terrain, but only east aspects at treeline. Valley bottom has a new widespread crust from yesterday, which will likely be buried by tomorrow. This new crust is also present on solar aspects up to 2300m. Expect new snow to not stick very well at first.

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