Avalanche forecast

Jasper

Mar 11 – 12, 2014Parks Canada
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Archived · expired 13 years ago

Avalanche danger

Thu
Fri
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
2 · Moderate
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Highlights

The intensity of the sun is key. If you find yourself basking in the heat of the sun, this should to be an indicator to you of increasing danger.

Avalanche problems

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    There has been several avalanches observed running in the recent storm snow.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    This problem will start to become a regular occurrence as the intensity of the sun increases and valley bottom temperatures climb.

Weather Forecast

Mainly sunny conditions with some afternoon clouds building, mild winter temperatures (-10 to -2) and moderate westerly wind gusts expected for Wednesday. Light snow with increasing intensity is forecast through to the end of the week.

Snowpack Summary

The recent storm snow has settled into a soft slab condition, especially in the alpine where the wind gusts have been in the moderate to strong range. Below tree line, warm temperatures have created moist surface conditions especially on solar aspects.

Avalanche Summary

Several slabs have been observed on lee slopes in the alpine. Whumphing and shooting cracks seen and felt today at treeline in conservative terrain reacting on the Feb. facet interface. The natural cycle has slowed down but we expect to see avalanche activity increase when the solar effect is strongest.

Confidence

Timing or intensity of solar radiation is uncertain

Regions covered