Bollettino valanghe

Jasper

Nov 26 – 27, 2020
Vedi sulla mappa
Archiviato · scaduto 6 years ago

Pericolo valanghe

Fri
Sat
Alta quota
3 · Marcato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
Apri la mappa completa

In sintesi

An early season refresh of low density new snow has hidden any lingering, exposed hazards. Excellent riding can be found throughout the forecast region.

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Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–2.5

    New snow and strong winds have created freshly formed wind slabs in immediate lee's.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–3

    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
    Likely
    Dimensione
    1–1.5

    New HST lingering on cliff sides and ice climbs. Ice Climbers be wary of this over head hazard.

Weather Forecast

Alpine temps expected to remain steady (-10 to -15) with intermitted, light flurries over the next couple of days. Moderate sw winds at tree line (TL). A further 20mm (~10cm)  forecast, beginning Friday afternoon, and tampering off by Saturday am. Excellent skiing can be found at TL and, in sheltered areas through the forecast region. 

Snowpack Summary

The snowpack is highly variable depending on location. Height of snow at Parkers is ~100cm at treeline. The Nov.4 crust found up to 2600m, and is ~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 ridge top down into treeline. Basal layers continue to weaken

Avalanche Summary

Avalanche control at Parkers Ridge today produced numerous, loose dry slides and a very healthy sz 2 that swept across the road. Dimensions of the slab, 100m x 200m x 60-100cms depth. Continued, moderate loading from steady sw winds and light HST observed after mid-day.

Confidence

Regioni coperte