Boletín de aludes

Jasper

Nov 23 – 24, 2020
Ver en el mapa
Archivado · caducó 6 years ago

Peligro de aludes

Tue
Wed
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
Abrir el mapa completo

Lo esencial

Avoid areas that have been wind loaded and watch for early season hazards. Your field reports can be submitted through the MIN and are much appreciated

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2

    Recent winds and snow have formed wind slabs

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2.5

    Pockets of previous wind deposited snow overlies the Nov 4 rain crust. Test results are mixed on this layer but appears to be becoming more reactive with increased loads and continued faceting

  • Loose Dry

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–1.5

Weather Forecast

Tonight: Mainly cloudy with isolated flurries. Precip: Trace. Alp temps: Low -8 C. Ridge wind SW: 10-30 km/h.

Monday: Mainly cloudy with isolated flurries. Precipitation: Trace. Alpine temperature: High -6 C. Ridge wind west: 10-30 km/h.

Tuesday: Flurries. Accumulation: 9 cm. Alp temp: Low -9 C, High -7 C. Ridge wind SW: 20-35 km/h.

Snowpack Summary

The snowpack is highly variable depending on location. Height of snow at Parkers is ~100cm at treeline. The Nov.4 crust up to 2600m, and is up to 70cm deep. Test results on this crust have shown a mix of mod sudden/resistent planar results. Continued wind slab develop on N and E aspects ridgetop down into treeline. Basal layers continue to weaken

Avalanche Summary

Several natural wind slab and dry loose avalanches in the alpine on north aspects have been observed in the Icefields, Jasper and Bald hills region over the past 72 hours. Natural avalanche activity has decreased over the last 24 hours with the winds reducing and clear skies having moved into the area.

Confidence

Intensity of incoming weather systems is uncertain on Tuesday

Regiones cubiertas