Bulletin d’avalanche

North Rockies

Mar 25 – 26, 2023Avalanche Canada
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Archivé · expiré 4 years ago

Danger d’avalanche

Mon
Tue
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

Keep an eye on the wind. If blowing snow is observed than new reactive wind slabs will likely form near ridge crests.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–1.5

    North east winds may redistribute recent snow into wind slabs on westerly aspects at treeline and above.

Confidence

Moderate

Avalanche Summary

No significant avalanches were reported over the past few days.

Snowpack Summary

Up to 15 cm of new snow sits over a crust on solar aspects and all aspects below treeline. On high north facing terrain this new snow sits over facets and surface hoar. If the wind picks up new wind slabs are likely to form.

The middle of the snowpack is generally well-settled and strong.

A weak layer of large facets is found near the base of the snowpack. This layer could still be a concern in very shallow snowpack areas.

 

Weather Summary

Saturday Night

Clear skies except for eastern side of the range where flurries are possible. 5 to 10 cm of new snow. Light westerly winds and a low of -4°C at 1500 m. Possible temperature inversion with colder temps at valley bottom.

Sunday

A mix of sun and cloud with the possibility of flurries bringing a few centimeters of new snow. Light to moderate northeast winds and a high of -2°C at 1500 m.

Monday

Mostly clear with no new snow expected. Light northwest winds and a high of -5°C at 1500 m.

Tuesday

Clear skies with no new snow expected. Light northerly winds and a high of -4°C at 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Pay attention to the wind, once it starts to blow fresh sensitive wind slabs are likely to form.
  • Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet
  • Minimize your exposure time below cornices.

Régions couvertes