Bollettino valanghe

Jasper

Mar 21 – 22, 2014Parks Canada
Vedi sulla mappa
Archiviato · scaduto 13 years ago

Pericolo valanghe

Sun
Mon
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
2 · Moderato
Apri la mappa completa

In sintesi

Ski conditions are great but the snowpack is still unstable.  Best to avoid big terrain features and choose conservative lines!

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Windslabs are forming in wind prone areas like below lee ridges at treeline and above.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–3
    The "drought layer" (Feb 10) has been sensitive in the past week, contributing to numerous large avalanches. Pay particular attention to moraines at treeline and cross-loaded features in the alpine.

Weather Forecast

Light flurries with little accumulation can be expected through the weekend.  Cold temperatures will persist with only light Northerly winds.

Snowpack Summary

40 cm of settled storm snow with little wind effect except in wind prone areas. This snow has buried various surfaces including windslab. The Feb. 10th drought layer is now almost a meter deep in the snowpack. Basal facets are still lurking at the base of this snowpack. Field teams in the Cavell area had widespread whumpfing on a moraine feature.

Avalanche Summary

No new observations today with teams in the Cavell area and a patrol to Saskatchewan Crossing.  Several large avalanches were observed earlier this week. These avalanches exhibited wide propagation, were primarily found in big East facing alpine terrain, and several were triggered by cornice fall.

Confidence

The weather pattern is stable on Saturday

Regioni coperte