Bollettino valanghe

South Coast Inland

Mar 20 – 21, 2023Avalanche Canada
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Archiviato · scaduto 4 years ago

Pericolo valanghe

Wed
Thu
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

The upper snowpack continues to adjust to the recent spring-like weather. Watch for surface snow turning wet and be wary of cornices.

Problemi valanghivi

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–1.5

    Strong solar radiation and warm temperatures may still produce moist surface snow and a wet-loose avalanche hazard. As temperatures drop and a crust forms this problem will disappear.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    2–3.5

    A layer of weak facets sits near the base of the snowpack. This layer is most likely to be problematic in steep, wind-loaded terrain where the snowpack depth varies from thick to thin. Especially in the northern part of the region around the Chilcotins, Birkenhead, and Hurley.

Confidence

High

Avalanche Summary

Wet-loose avalanches to size 1.5, occurring on east-to-south aspects, likely solar-induced, were reported over the weekend.

If you head out in the backcountry, let us know what you are seeing by submitting a report to the Mountain Information Network.

Snowpack Summary

A sun crust has formed on all aspects up to 1800 m and solar aspects at all elevations. 20 to 40 cm of dry, unconsolidated powder snow remains on the surface in northerly-facing terrain above 1800 m.

The mid-snowpack is well consolidated.

A layer of weak, sugary facets at the bottom of the snowpack continues to be a lingering concern throughout the region.

Weather Summary

Monday night

Clear with cloudy periods. Treeline temperatures 0 to -5 C. Light southeast ridgetop winds. Freezing levels 800 m.

Tuesday

Sunny. Treeline temperatures around 0 C. Light southeast ridgetop winds. Freezing levels 2000 m.

Wednesday

Sunny. Treeline temperatures around 0 C. Light southwest ridgetop winds. Freezing levels 2000 m.

Thursday

Mix of sun and cloud, with a chance of isolated flurries. Treeline temperatures 0 to -5 C. Light southerly ridgetop winds. Freezing levels 1600 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • In areas where deep persistent slabs may exist, avoid shallow or variable depth snowpacks and unsupported terrain features.

Regioni coperte