Bollettino valanghe

Jasper

Dec 22 – 23, 2021
Vedi sulla mappa
Archiviato · scaduto 5 years ago

Pericolo valanghe

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

In sintesi

Watch for the avalanche danger to rise on Wednesday with the incoming storm.

Expect travel delays on the Icefields Parkway Thursday due to avalanche control. Check AB511 for updates.

Problemi valanghivi

  • Wind Slabs

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

    Increasing winds and new snow overnight and through the day on Wednesday will create new wind slabs in lee features.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    2–3

    This problem is trending toward unreactive but our current snowpack structure means this layer could wake up with a large trigger or rapid loading. Use extra caution in thin areas were humans are most likely to trigger this high consequence layer.

Weather Forecast

Wednesday

Periods of snow.

Accumulation: 14 cm.

Alpine temperature: High -8 °C.

Ridge wind southwest: 20 km/h gusting to 45 km/h.

Freezing level at valley bottom.

Thursday

Flurries.

Accumulation: 10 cm.

Alpine temperature: Low -16 °C, High -7 °C.

Ridge wind west: 15 km/h gusting to 45 km/h.

Freezing level at valley bottom.

Snowpack Summary

Recent snow has been redistributed by variable winds creating fresh wind slab in the alpine and on exposed terrain features at treeline. The mid snowpack has settled well with a deteriorating rain crust present up to 1950m. Cold temperatures and a crust/facet layer near the base of the snowpack continues to promote basal faceting.

Avalanche Summary

Two size 1 wind slab avalanches were triggered by explosive avalanche control on Sunday in the Parkers ridge area. Avalanches occurred on cross loaded, alpine features below ridge top. No recent natural avalanche activity observed.

Please share your trip report, Ice and/or Riding conditions on Avalanche Canada's, Mountain Information Network!

Confidence

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

Regioni coperte