Avalanche forecast

Jasper

Jan 30 – 31, 2016Parks Canada
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Archived · expired 11 years ago

Avalanche danger

Sat
Sun
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

Highway 93 will be closed due to avalanche control from Sunwapta Warden Station to Saskatchewan Crossing. Expected time to open 4pm Saturday with moderate confidence. Check Alberta 511 for details.

Avalanche problems

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2
    Triggering is very likely in steep terrain.

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3
    30 cm of storm snow has been transported by NW to SW winds. These slabs are sitting on a weak faceted base and/or SH.

Weather Forecast

Temperatures moderating around -10 for Saturday with only small inputs of new snow over the day. Increasing light to moderate winds through the day.

Snowpack Summary

Up to 30 cm in south, less in the north fell on Thursday with moderate SW winds building touchy storm slab on lee slopes at tree line and above. Moderate rain below tree line along with above freezing temperatures have created a moist snowpack made up of the large facet crystals.

Avalanche Summary

Skier accidental occurred at 1230 at Parkers Ridge. Size 3, 1 involvement, partially buried, no injuries, some loss of equipment. Depth 10-240cm x 400m x 400m. Road buried south of Parkers summer trail (100ms with average depth on road 1.5ms). Significant cycle on all aspects, most initiating from the alpine and tree line elevations. 

Confidence

Regions covered