Avalanche forecast

Lizard-Flathead

Apr 8 – 9, 2024Avalanche Canada
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Archived · expired 2 years ago

Avalanche danger

Wed
Thu
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Highlights

Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–1.5

    New snow and southwest winds may form fresh, reactive wind slabs in the alpine and treeline.

Confidence

High

Avalanche Summary

On Sunday skier-triggering and explosive control work initiated several size 1 to 1.5 storm and wind slab avalanches. Numerous size 1 wet loose avalanches occurred on steep solar slopes.

Data is limited in this region. Please consider posting your observations to the Mountain Information Network.

Snowpack Summary

New snow accumulates on a robust crust or moist snow at all elevations except high north-facing.

A second crust in the upper snowpack is down 20 to 40 cm, depending on aspect and elevation.

Weak faceted grains sitting on a crust formed in early February are now buried 100 to 180 cm. This layer has generally been gaining strength and is unlikely to be human-triggered in areas where a supportive crust is present above it.

Weather Summary

Monday Night

Mostly cloudy with flurries, trace to 5 cm of accumulation. Southwest ridgetop wind 20 to 50 km/h. Treeline temperature -4° C. Freezing level 1500 m.

Tuesday

Mostly cloudy with flurries, trace to 5 cm accumulation. Southwest ridgetop winds 30 to 50 km/h. Treeline temperature -3 °C. Freezing level 1800 m.

Wednesday

Mostly Sunny. West ridgetop winds 5 to 15 km/h. Treeline temperature reaches a high of 0 °C. Freezing level rises to 2100 m.

Thursday

A mix of sun and cloud. Southwest ridgetop winds 5 to 15 km/h. Treeline temperature reaches a high of +1 °C. Freezing level rises to 2300 m.

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 may be poorly bonded to the underlying crust.

Regions covered