Bollettino valanghe

South Coast

Feb 26, 2017Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 10 years ago

Pericolo valanghe

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

In sintesi

Storm slabs will grow a bit thicker with 10 cm of new snow in the forecast. Be ready for human triggering potential to persist through Sunday.

Problemi valanghivi

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2
    With another 10 cm in the forecast, up to 25 cm of new snow will have accumulated in some parts of the South Coast by Sunday morning. A poor bond is expected at the new snow interface, so storm slabs are likely to remain reactive on Sunday.

Confidence

Moderate - Forecast snowfall amounts are uncertain on Saturday

Weather Forecast

Saturday night: Flurries bringing 5-10 cm of new snow. Winds light to moderate from the southwest. Sunday: A mix of sun and cloud. Winds light to moderate from the northeast. Freezing level to 900 metres with alpine temperatures of -1 Monday: A mix of sun and cloud. Winds light to moderate from the southwest. Freezing level to 400 metres with alpine teperatures of -4. Tuesday: Flurries bringing up to 10 cm of new snow, beginning in the afternoon. Winds moderate to strong from the southwest. Freezing level to 700 metres with alpine temperatures of -2.

Avalanche Summary

No new avalanches have been reported. Please post your observations to the Mountain Information Network.

Snowpack Summary

Up to 15 cm of new snow fell over the South Coast region over Thursday night, with average new snow amounts closer to 5 cm. In some areas, the new snow overlies up to 3cm of recent graupel accumulation. Below the new snow and graupel, the previous snow surface is a mix of sun crust on solar aspects and surface hoar on shaded aspects. The new snow's bond to these surfaces will take some time to form. Older storm snow can be found below the new snow interface and it is reportedly well bonded to the widespread mid-February rain crust, now found down around 40-60 cm at higher elevations. The crust itself is supportive and roughly 20cm thick. Below the crust, the snowpack is still moist as a result of heavy rain from last week.

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