Bollettino valanghe

South Coast

Mar 7, 2018Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 9 years ago

Pericolo valanghe

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

In sintesi

Rising freezing levels and sunny breaks will weaken the surface snow. Danger will increase with the incoming storm on Thursday and Friday.

Problemi valanghivi

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–3
    Continued snowfall and strong wind from around the clock has formed large cornices on many ridgelines. Cornices are inherently unstable, unpredictable, and demand respect, especially when the sun is out.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Snow on steep south slopes will become weak with daytime warming and direct sunlight.

Confidence

Moderate - Due to the number of field observations

Weather Forecast

WEDNESDAY: Sunny with high clouds in the afternoon, light southwest wind, freezing level rising to around 1800 m.THURSDAY: Flurries increasing throughout the day with 5-10 cm of snow by the afternoon, moderate southwest wind, freezing level rising to around 1200 m.FRIDAY: Another 5-10 cm of snow with freezing level rising to around 1200 m.

Avalanche Summary

No recent avalanches have been reported.A MIN report from just outside the region near Squamish (Watersprite Lake) describes a natural size 2 avalanche that failed on a south aspect at 1750 m (see photo and details here). Also, check out the MCR report from the Sea-to-Sky Gondola (here) that talks about the strong late winter sun initiating up to size 2 natural avalanches last week.

Snowpack Summary

Isolated flurries are depositing light amounts of new snow throughout the region and sporadic sunny breaks could weaken the surface snow. 50-70 cm of snow from last week is settling and gaining strength. On southerly aspects, the storm snow sits above a sun crust which is a potential layer to monitor.Cornices have formed on many alpine ridgelines. They will become touchier as they grow in size, as temperatures rise, and as they are subject to the strong late-winter sun on clear days.

Regioni coperte