Bollettino valanghe

South Coast

Jan 19, 2018Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 9 years ago

Pericolo valanghe

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

In sintesi

Snow and wind are expected to continue however, there is some uncertainty as to just how much snowfall some areas will see. If trail breaking is deep and heavy, storm slabs have likely formed - stick to moderate terrain.

Problemi valanghivi

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2
    New snow combined with southerly winds will form storm slabs particularly on lee slopes at upper treeline and alpine elevations. These slabs overlie a recent melt-freeze crust and may be easily triggered by a skier or rider.

Confidence

Moderate - Forecast snowfall amounts are uncertain

Weather Forecast

TONIGHT: Snow. Accumulation 15-20 cm. Ridge wind moderate to strong, southwest. Temperature -1. Freezing level 900 m.FRIDAY: Cloudy, snow. Accumulation 20-30 cm. Ridge wind moderate, southwest. Temperature -1. Freezing level 1000 m.SATURDAY: Cloudy, snow. Accumulation 20-25 cm. Ridge wind moderate, southwest. Temperature -1. Freezing level 1000 m.SUNDAY: Cloudy, snow. Accumulation 20-25 cm. Ridge wind moderate, southwest. Temperature -1. Freezing level 900 m.

Avalanche Summary

Last Tuesday a skier was injured in a loose, wet avalanche on the North Shore mountains when the top 10-15 cm of wet snow released on the January 8th crust. On Friday explosive control produced a size 1 avalanche that released a 45 cm thick slab on a weak layer just above the January 7th crust.

Snowpack Summary

At upper treeline and alpine elevations, 5 cm up to 30 cm of new snow has fallen and now covers the January 17th crust. At lower elevations rain has soaked the upper snowpack which consists of 90 cm of wet to moist snow and three deeper crusts (January 10th, January 8th and January 7th). These remain visible but have been unreactive in recent snowpack tests.  The snowpack depth at 1000 m is about 150 cm and many early season hazards are still present.

Regioni coperte