Bollettino valanghe

Banff Yoho Kootenay

Feb 5 – 6, 2012Parks Canada
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Archiviato · scaduto 15 years ago

Pericolo valanghe

Sun
Mon
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

Sat.saw temps up to +5C at ridgetop and cooler in the valley.Slides up to sz.1.5 were reported on solar aspects. Conditions are good, but hazard will spike on sunny slopes Sunday,as this inversion will continue until cooler temps arrive on Monday. SH

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3
    Isolated windslabs exist up to a meter thick on lee slopes in the alpine. Forecasters on the Wapta today were avoiding large, very steep alpine features where the chance of triggering is greater. Excellent travel and ski conditions were reported.
  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–3
    Some loose snow avalanches initiated in thin, steep slopes on solar aspects have been observed to "step down" to ground on basal facets/depth hoar. So far these have been in the 1.5 range, and we can expect more of this on Sunday.
  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–2
    Afternoon wet slides may occur, increasing the hazard on solar aspects, especially around steep, rocky terrain. Cornices are also weakening in the sun, and some collapses have been observed to entrain loose, wet snow.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable

Regioni coperte