Avalanche forecast

Microwave-Sinclair

Apr 24 – 25, 2025Avalanche Canada
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Archived · expired last year

Avalanche danger

Sat
Sun
Alpine
1 · Low
Treeline
1 · Low
Below
1 · Low

Highlights

Continue to practice safe travel habits if you venture into the backcountry.

Avalanche problems

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1.5–2.5

    Cornices may weaken with daytime warming. A cornice fall could trigger slabs on slopes beneath them. Daytime warming could also produce small loose wet activity.

Confidence

Moderate

Avalanche Summary

We haven't received any recent reports of avalanche activity.

Please consider sharing your observations to the Mountain Information Network.

Snowpack Summary

A hard melt-freeze crust is found on the snow surface everywhere except perhaps in the high alpine, where a dusting of dry snow may be found. The crust will soften with daytime warming.

Two weak layers that formed in February and March are found in the middle of the snowpack. These layers are currently dormant, but they could be triggered with a large load, such as a cornice fall.

Weather Summary

Thursday Night

Partly cloudy. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1900 m.

Friday

A mix of sun and clouds. 20 to 30 km/h southwest ridgetop wind. Treeline temperature +3 °C. Freezing level 1800 m.

Saturday

Mostly cloudy. 10 to 20 km/h west ridgetop wind. Treeline temperature +1 °C. Freezing level 1600 m.

Sunday

Mostly cloudy. 10 to 20 km/h southwest ridgetop wind. Treeline temperature +5 °C. Freezing level 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.

Regions covered