Bollettino valanghe

Sea To Sky

Feb 1, 2017Avalanche Canada
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Archiviato · scaduto 10 years ago

Pericolo valanghe

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

In sintesi

Watch for lingering wind slabs that may be reactive to rider triggers.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    With recent switching winds all aspects may have pockets of wind slab on exposed features near ridge crests and cross-loaded gullies.

Confidence

High - The weather pattern is stable

Weather Forecast

The high pressure continues, resulting in a fairly benign pattern until Friday.Wednesday/ Thursday: Mostly sunny with alpine temperatures near -12. Ridgetop winds will be light from the northeast. Friday: Cloudy with snow amounts 5-10 cm. Alpine high of -4 and ridgetop winds light-gusting strong from the southwest.

Avalanche Summary

On Monday, isolated wind slabs up to size 1 were triggered by the weight of a rider. Wind slabs may continue to be reactive in the lee of exposed terrain.

Snowpack Summary

Strong winds and up to 15 cm of recent snow over the weekend have formed fresh reactive wind slabs in the lee of exposed terrain. The new snow sits above a thin breakable sun crust and isolated pockets of buried surface hoar. Some recent snowpack tests have shown hard, yet sudden planar results on the mid-January interface (facets) buried approximately 45 cm down. A total of 60-120 cm of settled storm snow now forms the upper snowpack and is generally bonded to a crust below. The exception may be thin rocky areas. The mid and lower snowpack are generally well settled, but still feature a number of facet and crust layers that warrant long term monitoring.

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