Avalanche forecast

Jasper

Mar 3 – 4, 2022
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Avalanche danger

Fri
Sat
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Road closures are planned for avalanche control on March 3, 2022 on Highway 93N between Saskatchewan Crossing and Parkers Ridge. Road will be closed for 1.5 hour durations between 10am and 3pm.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2.5

    Previous 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
    1–2

    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

Thursday

Cloudy with sunny periods and isolated flurries.

Precipitation: Trace.

Alpine temperature: High -3 °C.

Ridge wind light to 25 km/h.

Freezing level: 1800 metres.

Friday

A mix of sun and cloud.

Precipitation: Nil.

Alpine temperature: Low -13 °C, High -8 °C.

Ridge wind north: 10-25 km/h.

Freezing level at valley bottom.

Snowpack Summary

20cm of new snow around the Parker Ridge area brings the Storm total to 35 cm since Feb 28. The new snow is low density. 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 Wednesday up to Sz 1. One small natural wind slab observed on a steep rocky open tree line slope on Monday.

Confidence

Regions covered