Bollettino valanghe

Jasper

Apr 2 – 3, 2018Parks Canada
Vedi sulla mappa
Archiviato · scaduto 8 years ago

Pericolo valanghe

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

In sintesi

A noticeable hiatus in the Spring transition is giving plenty of opportunity to get good riding on dry snow. Persistent instabilities will persist for the remainder of the season...Don't, don't, don't, don't! Don't you, forget about me!

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–2.5
    In most cases this interface presents as a manageable surface instability and is expected to go dormant pretty quickly. Pay close attention to any fellow travelers above and/or below you as enter fresh terrain.

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1.5–3
    Cornices are growing with fresh snow additions. Several failures were noted, in most cases triggering a slab below.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–2.5
    Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to to a slope.

Weather Forecast

"La Nina" spring continuing (cool and moist). Next 24hrs expect continued broken skies, no significant precip and alpine temperatures to reach a high of -8°C. Light winds through the region.

Snowpack Summary

A variety of slab conditions exist on most aspects at treeline and above. 10-20cm of recent storm snow has created a settled new wind slab. This slab can be up to 30cm thick . Below this, older slabs up to 60cm thick sit on a sun-crust on solar aspects and facets on polar aspects. Below treeline the snow is shallow.

Avalanche Summary

No new avalanches reported or observed. Field team reported finding signs of lingering instability at TL; whumphing and cracking but could not get anything to initiate into a slide. 

Confidence

Regioni coperte