Bollettino valanghe

Haines Pass

Avalanche Canada
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Pericolo valanghe

Wed
Thu
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
Senza grado
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Non aggiornato — questo bollettino è scaduto 4 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Both wind slabs and persistent weak layers remain a concern in steep alpine terrain.

Continually assess as you travel, and back off terrain when signs of instability are observed.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    Recent variable winds have created wind slabs in alpine terrain atop a variety of old surfaces.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–4

    A layer of facets over a crust is buried 80 to 150 cm. There have been no new reports of avalanches on this layer, and it is likely difficult to trigger with the generally benign weather.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

A few wet loose avalanches were observed in steep rocky terrain near Kelsall Lake over the weekend.

Snowpack Summary

Light snowfall has been redistributed by variable winds at higher elevations, with a dusting covering a crust on south-facing slopes.

A persistent weak layer of facets and crust is 80 to 150 cm deep in the alpine, and would most likely be triggered by large loads, like a cornice fall, or in thin-to-thick snowpack transitions.

See this AvCan Yukon MIN report report for a detailed conditions update.

Weather Summary

Monday Night

Partly cloudy. 0 to 1 cm of snow. 10 km/h south ridgetop wind. Treeline temperature -7 °C.

Tuesday

Mostly cloudy. 1 to 3 cm of snow. 30 km/h north ridgetop wind. Treeline temperature -2 °C.

Wednesday

Mostly sunny. 20 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Thursday

Mostly cloudy. 1 to 2 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Be aware of the potential for large, destructive avalanches due to deeply buried weak layers.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Regioni coperte