Bollettino valanghe

Northwest Inland

Feb 6, 2019Avalanche Canada
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Archiviato · scaduto 8 years ago

Pericolo valanghe

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

In sintesi

Northwest winds have blown our storm snow into wind slabs on lee slopes and cross-loaded features in wind-affected areas. Seek out sheltered areas and lower angled slopes for the safest, best skiing and riding.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Strong northeast winds have redistributed our recent storm snow. Expect to find reactive wind slabs in cross-loaded and lee terrain features near ridges.

Confidence

High - The weather pattern is stable

Weather Forecast

Tuesday night: Mainly clear. Light northwest winds. Wednesday: Mainly cloudy with isolated flurries and a trace of new snow, increasing a bit overnight. Light northwest winds. Alpine high temperatures around -7. Cooler at lower elevations due to a temperature inversion.Thursday: Cloudy with increasing sunny periods and easing flurries with a trace of new snow. New snow totals up to around 3 cm. Light northwest winds, increasing in the evening. Alpine high temperatures around -7. Cooler at lower elevations due to a lingering temperature inversion.Friday: Sunny with cloudy periods. Moderate to strong northeast winds. Alpine high temperatures around -19.

Avalanche Summary

Observations from Monday showed small (size 1) wind slabs releasing naturally from steep, wind loaded pockets in the Howson range.Numerous avalanches were triggered by skiers and naturally within the recent storm snow on the weekend. Check out this MIN report describing widespread slab activity.

Snowpack Summary

Strong northeast winds have redistributed the recent 20 to 40 cm of storm snow in exposed terrain, forming wind slabs. This snow overlies previously wind-affected snow in the high alpine and a widespread melt-freeze crust elsewhere. In the central and northern parts of the region, the storm snow may sit on feathery surface hoar crystals in sheltered terrain at all elevations.In the south of the region, the remainder of the snowpack has been reported as well-settled.Around and north of Hazelton, 50 to 100 cm of snow may overly two weak layers of surface hoar or sugary faceted grains.

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