Avalanche forecast

Jasper

Feb 10 – 11, 2021
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Archived · expired 6 years ago

Avalanche danger

Thu
Fri
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low

Highlights

If you must travel in the Back Country: keep your objectives short, and close to home. Even a small injury will have serious consequences with the present temperatures.

Ice climbers be very leery of any brittle, overhead features.

Avalanche problems

  • Wind Slabs

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

    Wind speeds have remained light with only occasional transport speeds recorded over the past few days. Watch for areas of localized wind effect in the ALP and exposed TL features.

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1.5–3

    Cold temperatures can make cornices brittle. Keep a healthy distance away both when traveling below, or near corniced features.

Weather Forecast

Coldest recorded temps (so far;): Maligne, -40.1; Parkers Ridge, -34.9

My limited meteorological experience tells me, it's really cold; and not looking to be tolerable, at least until the end of the week.

Wednesday: Sunny with cloudy periods. Alpine temperature: High -24 °C. Ridge wind northeast: 10 km/h.

Snowpack Summary

The cold has deeply penetrated the snowpack, promoting profound facetting in the upper 40cm. This will slow any slab development on the recent storm snow. The mid-pack has remained strong but, will loose strength over time with the prolonged arctic influence, especially where shallow. 

Avalanche Summary

No recent avalanche activity observed or reported.

Confidence

Due to the number of field observations

Regions covered