Boletín de aludes

Waterton Lakes

Dec 21 – 24, 2015Parks Canada
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Archivado · caducó 11 years ago

Peligro de aludes

Mon
Tue
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
1 · Débil
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Lo esencial

The skiing may have been ruined by the wind to some degree today.  Hopefully it will recover on Monday night.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–3
    These may be hidden under light new snow by Tuesday.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    May be building Monday night.

Weather Forecast

A weak upper front passing the region tonight will bring light snowfall (up to 5cm) and continued strong SW wind. Some models are forecasting a brief upslope flow Monday evening, with the most optimistic predicting 15 cm of snow - this accompanied by light winds from the NE. Conditions remain cool and unsettled through Wed, with the odd flurry.

Snowpack Summary

10-15cm of dense new snow is being redistributed into wind slabs by strong (gusting extreme) SW winds. A rain crust from Dec. 9th is buried 40-55cm down at tree line and below, and a widespread mid-November crust (buried down at least 60cm) is sandwiched within a strong lower snowpack.

Avalanche Summary

No new avalanche activity. A size 1.5 avalanche was observed out of the extreme terrain on the East face of Forum peak yesterday.

Confidence

Timing, track, or intensity of incoming weather system is uncertain

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