Bulletin d’avalanche

South Coast Inland

Feb 7, 2019Avalanche Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

Fri
Sat
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

Wind slabs have developed on a variety of aspects due to shifting winds. Natural avalanche activity has tapered off but human triggered avalanches remain possible.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Switching winds have formed wind slabs on a variety of aspects at upper elevations.

Confidence

High - The weather pattern is stable on Thursday

Weather Forecast

Increasing cloud cover and light snowfall amounts are forecast with the incoming weather system. The weekend will remain cold.THURSDAY: Cloudy with sunny periods and isolated flurries. Alpine temperatures near -5 with light ridgetop winds from the southwest.FRIDAY: Cloudy with snow amounts 5-10 cm. Alpine temperatures near -10 and ridgetop winds moderate from the northeast. SATURDAY: A mix of sun and cloud. Alpine temperatures near -16 and ridgetop winds moderate from the northeast.

Avalanche Summary

On Tuesday, no new avalanches were reported.

Snowpack Summary

Alpine terrain is heavily wind affected to varying degrees on all aspects. 15-30 cm of snow from last weekend was initially redistributed by southwesterly winds shifting to northeasterly forming stiff wind slabs on most aspects. This recent snow is sitting a variety of old snow surfaces including a crust on all but northerly aspects, wind pressed and possibly a mixture of weak feathery surface hoar and/or sugary facets in sheltered terrain at treeline and below. Below this 50-80 cm down sits a crust that formed mid-January right to mountain top on southerly aspects and on all aspects below 1700 m. Additionally at this depth, feathery surface hoar may be found in shady sheltered areas at treeline. This surface hoar layer is reported to be most prevalent in the far southeast of the region near Manning Park.The remainder of the snowpack is generally well-settled.

Régions couvertes