Bulletin d’avalanche

Jasper

Mar 22 – 23, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

Sun
Mon
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Cool and stable weather with no significant precipitation for the next few days will contribute to lower avalanche danger.

Be cautious of surface snow sloughing off steep slopes above you, and enjoy some soft turns in the sun this weekend.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1.5–3

    This problem layer is the crust and facets created by early February's warm spell. It is down 30-90 cm in the snowpack and is a 1-10 cm thick crust or multiple crusts with a layer of weak facets above.

  • Loose Dry

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

    Loose dry avalanches likely won't be much of a hazard unless they push you into or off a terrain trap.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–3.5

    Basal depth hoar makes up the bottom of the snowpack. This is a low probability but high consequence problem. Stay away from weak, rocky, shallow location where triggering this layer is more likely.

Avalanche Summary

Small solar triggered sluffs reported by Marmot Basin on Friday.Icefields Parkway patrol on Thursday saw no new natural avalanche activity.

Sunday

Small solar triggered sluffs reported by Marmot Basin on Friday.Icefields Parkway patrol on Thursday saw no new natural avalanche activity.

Monday

Small solar triggered sluffs reported by Marmot Basin on Friday.Icefields Parkway patrol on Thursday saw no new natural avalanche activity.

Confidence

Moderate

Snowpack Summary

About 10cm of new snow fell onto a 2-5cm melt freeze crust on Wednesday. The Feb 3rd crust interface is down 35-60cm. Basal depth hoar makes up the bottom third of the snowpack. HS ranges from 50 to 150cm.

Sunday

About 10cm of new snow fell onto a 2-5cm melt freeze crust on Wednesday. The Feb 3rd crust interface is down 35-60cm. Basal depth hoar makes up the bottom third of the snowpack. HS ranges from 50 to 150cm.

Monday

About 10cm of new snow fell onto a 2-5cm melt freeze crust on Wednesday. The Feb 3rd crust interface is down 35-60cm. Basal depth hoar makes up the bottom third of the snowpack. HS ranges from 50 to 150cm.

Weather Summary

Mountain Weather Forecast is available @ Avalanche Canada https://avalanche.ca/weather/forecast

Saturday

Cloudy with sunny periods. Precipitation: Nil. Alpine temperature: High -8 °C. Ridge wind east: 10 km/h. Freezing level at valley bottom.

SundayA mix of sun and cloud. Precipitation: Nil. Alpine temperature: Low -16 °C, High -6 °C. Light ridge wind. Freezing level at valley bottom.

Terrain and Travel Advice

  • Closely monitor how the new snow is bonding to the old surface.
  • Even a small avalanche can be harmful if it pushes you into an obstacle or a terrain trap.

Régions couvertes