Bollettino valanghe

Banff Yoho Kootenay

Apr 25 – 26, 2024Avalanche Canada
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Archiviato · scaduto 2 years ago

Pericolo valanghe

Sat
Sun
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
Senza grado

In sintesi

An upslope storm will bring a small return to winter by Friday mid morning. The new snow may sluff easily on hard crusty surfaces.

Problemi valanghivi

  • Wind Slabs

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

    Up to 15 cm new snow overnight Thursday with moderate easterly winds may create windslabs in alpine lee features. These will be most significant in areas that receive the most snow. Loading may be atypical with the majority of the snow coming with easterly winds.

Confidence

Moderate

Avalanche Summary

No new avalanches were observed or reported on Thursday

Snowpack Summary

2-15 cm of snow forecasted by Friday AM will cover hard surface crusts on all aspects except for north facing alpine slopes above ~2300 m. Be on the lookout for small, fresh windslabs in alpine lee areas where recent winds will have blown the new snow into deeper pockets.

In the mid-pack, the Feb 3 persistent layer (crust/facet layer) remains a feature in the snowpack but has been unreactive with recent colder temperatures. This layer is a greater concern in thin snowpack areas

Weather Summary

An upslope flow overnight Thursday could bring up to 15 cm by mid morning on Friday. Amounts will vary with as little as a trace in some areas. Expect deeper amounts in eastern areas. Freezing levels will be 1500- 2000m.

Saturday and Sunday will be warmer with freezing levels 2000 - 2500m and continued flurries/showers.

For more detailed weather click here.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Regioni coperte