Avalanche forecast

Jasper

Dec 13 – 14, 2019Parks Canada
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Archived · expired 7 years ago

Avalanche danger

Sat
Sun
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Delicious skiing can be found where winds have not impacted the snow. Be vigilant for rocks just under the snow surface. JA

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–3

    Wind slabs are present on lee slopes and cross-loaded features

  • Persistent Slabs

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

    Isolated to very specific sheltered locations at treeline.

  • Loose Dry

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

    Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance. Solar input has the potential to trigger this problem.

Weather Forecast

Friday will be cloudy with sunny periods and isolated flurries, trace snowfall, high -9, West winds 10-20 km/h. A mix of sun and cloud. Saturday will be similar with colder temperatures.

For More details: Mountain Weather Forecast

Snowpack Summary

The top 30cm remains unconsolidated except where exposed to wind where soft slabs have been formed. The snow depth is variable at all elevations. There is a crust/facet layer distributed through the region in the mid-pack with mixed reactivity and a weak basal facet/depth hoar layer at the base of the pack.

Avalanche Summary

Field day to Parkers Ridge area on Wednesday noted several loose dry up to size 2 out of steep, rocky solar terrain triggered by solar input. The visibility was good and nothing else was observed. Field trip on Thursday noted no new naturals.

Confidence

The weather pattern is stable

Regions covered