Bollettino valanghe

Northwest Inland

Jan 29 – 31, 2012Avalanche Canada
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Archiviato · scaduto 15 years ago

Pericolo valanghe

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

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    2–5
    Wind slabs are likely behind ridges and terrain breaks. They could be quite large and may require another day or two to stabilize

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    2–5
    A weak layer in the snowpack was covered by the recent storm snow. It may take some time before it gains strength. Watch steep slopes, convex rolls, and unsupported slopes.

Weather Forecast

Sunday should see cooling temperatures and an end to significant precipitation, although snow could linger into Monday morning. Tuesday & Wednesday the region should be under a westerly zonal flow with short lived disturbances - only a few cm expected. The next system hits the coast Wednesday, but likely not till evening.

Avalanche Summary

There are no new reports from the region. Please send us your observations: [email protected]

Snowpack Summary

I suspect pockets of wind slab behind ridges & ribs at alpine and treeline elevations. I also suspect storm slabs on steeper terrain, unsupported slopes, or convex rolls. Deeper in the snowpack is a layer of facets (sugary snow) which formed during the cold mid-January drought. The combination of newer, warmer, cohesive snow above a thin, weak, rotten snowpack is a bad combination.

Confidence

Poor - Due to limited field observations

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