Bollettino valanghe

Cariboos

Apr 20 – 21, 2024Avalanche Canada
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Archiviato · scaduto 2 years ago

Pericolo valanghe

Mon
Tue
Alta quota
1 · Debole
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

Watch for pockets of wind slab forming in high leeward terrain features and be ready to dial back your terrain choices if you see more than 15 cm of new snow.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–1.5

    Wind slabs are possible where wind has deposited sufficient snow into lee terrain features at upper elevations. Wind slabs may be especially reactive where they sit over a crust.

Confidence

Moderate

Avalanche Summary

A couple of large cornice failures have been observed over the past few days. Both took place in high alpine areas in north-facing terrain. Neither of these failures propagated any weak layers on the slopes below.

Snowpack Summary

A dusting of new snow falls over a widespread melt-freeze crust on all but high north-facing alpine terrain, where dry and/or wind affected snow may persist.

Weather Summary

Saturday night

Up to 5 cm of new snow at upper elevations. 30 to 60 km/h southeast ridgetop wind. Treeline temperature -4 °C. Freezing level 1500 m.

Sunday

Cloudy with up to 10 cm of snow at upper elevations. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1800 m.

Monday

Mostly cloudy, clearing in the evening. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1800m.

Tuesday

A mix of sun and cloud. 10 to 30 km/h southeast ridgetop wind. Treeline temperature -1 °C. Freezing level 1800m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Fresh wind slabs will likely form throughout the day, diligently watch for changing conditions.
  • Wind slabs are most reactive during their formation.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Regioni coperte