Avalanche forecast

Microwave-Sinclair

Mar 13 – 14, 2025Avalanche Canada
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Avalanche danger

Sat
Sun
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Buried weak layers remain rider-triggerable.

Use extra caution on north-facing slopes at ridgeline.

Avalanche problems

  • Wind Slabs

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

    Small amounts of new snow over several days and steady southerly winds continue to promote thin wind slab formation in lee terrain.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2.5

    A buried weak layer of facets and/or surface hoar buried mid-February exists 30 to 50 cm below the snow surface.

Confidence

Moderate

Avalanche Summary

There has been no new avalanche activity reported in the previous few days. If you do observe an avalanche, consider posting a MIN.

Snowpack Summary

10-15cm of recent new snow has buried widespread layer of surface hoar crystals, which sit over a crust on solar aspects and low elevations.

A layer of facets, surface hoar and/or a crust buried mid February is 30 to 50 cm below the snow surface and has been reactive in snowpack tests.

Deeper in the snowpack, a weak layer of facets and a crust from early December can be found. This layer appears to be dormant but is still worth keeping in mind in thin snowpack areas in the alpine.

Weather Summary

Thursday Night

Mostly cloudy with 0 to 1 cm of snow. 20 to 30 km/h southeast ridgetop wind. Treeline temperature -10 °C.

Friday

Mostly cloudy. 20 to 40 km/h southeast ridgetop wind. Treeline temperature -10 °C.

Saturday

Cloudy. 0-5 cm of snow. 10 to 30 km/h southwest wind. Treeline temperature -6 °C.

Sunday

Cloudy with scattered flurries. 25 to 45 km/h southwest wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

Regions covered