Avalanche forecast

South Rockies

Apr 9 – 10, 2025Avalanche Canada
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Avalanche danger

Fri
Sat
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
2 · Moderate
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Highlights

As the temperature rises and the sun comes out, avalanche activity will become more likely.

Move to more conservative terrain as it warms up.

Avalanche problems

  • Wind Slabs

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

    Riders may trigger small pockets of wind slab in extreme terrain.

  • Cornices

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

    Cornices may fail with warm temperatures and sunshine.

  • Loose Wet

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

    Wet loose avalanches are likely as the new snow sees the sun for the first time.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported since the weekend.

On Friday, skiers remotely triggered a slab on a northeast lee ridge feature at treeline near Mt. Fisher.

Snowpack Summary

5 to 10 cm of new snow sits on a crust at higher elevations, transitioning to moist snow below 2000 m. High alpine north facing slopes may still hold dry snow above a thick crust from late March.

The snowpack is quickly disappearing below treeline.

Weather Summary

Wednesday Night

Partly cloudy, clearing. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Thursday

Sunny. 20 to 40 km/h southwest ridgetop wind. Treeline temperature +4 °C. Freezing level 2700 m.

Friday

A mix of sun and cloud with up to 5 cm of snow. 20 to 35 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 2700 m.

Saturday

A mix of sun and cloud with 1 cm of snow. 10 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2100 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • Avalanche danger will increase as the surface crust breaks down.
  • Rocks will heat up with daytime warming and may become trigger points for loose wet avalanches.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

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