Avalanche forecast

Jasper

Jan 17 – 18, 2019Parks Canada
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Archived · expired 8 years ago

Avalanche danger

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

Recent warm days and cool nights have strengthened the mid and upper snowpack, but changes to the deep persistent weakness will be much slower. A conservative approach is still warranted.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2
    Recently formed wind slabs appear to bonding well to the snowpack below.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1.5–4
    Use caution in shallow snowpack areas where deep weakness might be more reactive to a human load. Build trust slowly in the snowpack before committing to any large rideable slope.

Avalanche Summary

No new activity has been observed or reported.Be a part of the Avalanche Forecasting team by reporting your field trip this weekend on Avalanche Canada's Mountain Information Network.

Confidence

Weather Forecast

An arctic front approaching from the NE brings the potential for upslope flurries Thursday.  Followed by bands of precip embedded in a low this weekend, giving strong winds and rising temps.Thurs: Sun and cloud mix, light flurries. Alpine Low -15 C, High -8 C, light ridge wind.A detailed mountain weather forecast is available from Avalanche Canada.

Snowpack Summary

Surface conditions vary thanks to the past weeks drought - a thin crust on steep solar aspects, 5-10mm surface hoar in sheltered areas, and wind effect in exposed areas from moderate-strong SW winds. A generally strong mid snowpack overlies deep persistent weaknesses. Use caution in shallow areas where these deep weakness might be more reactive.

Regions covered