Bollettino valanghe

Jasper

Nov 23 – 24, 2020
Vedi sulla mappa
Archiviato · scaduto 6 years ago

Pericolo valanghe

Tue
Wed
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
Apri la mappa completa

In sintesi

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

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–2

    Recent winds and snow have formed wind slabs

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    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 quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    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

Regioni coperte