Boletín de aludes

Kootenay Boundary

Apr 9 – 10, 2024Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

Thu
Fri
Alta montaña
2 · Moderado
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
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Lo esencial

Assess for wind slabs along ridges and in alpine terrain.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–1.5

    Recent snowfall was accompanied with southwest wind, likely leaving reactive slabs on some leeward terrain features.

Confidence

High

Avalanche Summary

A few small (size 1) dry loose avalanches were observed on Monday.

Snowpack Summary

Most parts of the region received 5 to 10 cm of new snow on Tuesday, with up to 15 cm in parts of the Selkirks. A total of 15 to 30 cm of dry snow sits atop melt-freeze layers. Several crusts may be found in the top 50 cm of snowpack, depending on aspect and elevation.

The facet/crust layer that caused large avalanches in March is buried 100 to 180 cm deep and is unlikely to trigger under the current conditions.

Weather Summary

Tuesday Night

Mostly clear. 25 km/h northwest ridgetop wind. Treeline temperature -5 °C.

Wednesday

Mix of sun and cloud. 25 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2100 m.

Thursday

Mostly cloudy with afternoon flurries and up to 2 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1900 m.

Friday

Up to 5 cm of snow overnight then cloudy with isolated flurries during the day. 10 km/h southeast ridgetop wind. Treeline temperature +1 °C. Freezing level 2100 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Closely monitor how the new snow is bonding to the crust.

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