Avalanche forecast

Jasper

Mar 2 – 3, 2022
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Avalanche danger

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

New snow, winds, and rising temperatures have increased the avalanche danger. Keep it conservative until colder temperatures have arrived and the snowpack has had time to settle to the new load.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2

    Moderate SW winds and snow available to transport has resulted in wind slab formation. In sheltered location there could be isolated storm slabs.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–1.5

    If it is raining at lower elevations watch out for wet loose avalanches below tree line. Avoid ice climbs that are exposed to steep rocky terrain.

Weather Forecast

Wednesday:

Cloudy with sunny periods and isolated flurries.

Precipitation: Trace.

Alpine temperature: High -4 C.

Ridge wind southwest: 10-20 km/h.

Freezing level: 1800 metres.

Thursday:

Cloudy with sunny periods and isolated flurries.

Accumulation: 4 cm.

Alpine temperature: Low -12 C, High -5 C.

Light ridge wind.

Freezing level: 1500 metres.

Snowpack Summary

20cm of new snow around the Parker Ridge area in the last 48hrs. Moderate SW winds are building fresh wind slabs in the alpine. Freezing levels are around 2100m. A crust below the top 25-40cm of snow is decomposing and can be found below 2500m. There is a weak facet snow layer at the bottom of the snowpack, this is widespread throughout the park.

Avalanche Summary

Several loose dry avalanches were observed off steep rocky features on Tuesday. One small natural wind slab observed on a steep rocky open tree line slope on Monday.

Confidence

Timing, track, or intensity of incoming weather system is uncertain

Regions covered