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Avalanche Forecast

Archived

Mar 27th, 2026–Mar 28th, 2026

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural and human triggered avalanches likely.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Below Threshold.

Regions

Long Range Mountains, Corner Brook, Gros Morne, Northern Peninsula.

Assess for wind slab in steep alpine terrain before committing.

Observations indicate that wind slabs are likely bonded to the underlying crust but this may not be the case everywhere.

Confidence

Moderate

  • We have a good understanding of the snowpack structure and confidence in the weather forecast.

Avalanche Summary

Our field team observed a size 1 wind slab avalanche on an east facing alpine feature. This avalanche released naturally on Wednesday. We suspect that more wind slab activity has occurred this week but visibility has been challenging at times.

Snowpack Summary

Previous storm snow and strong wind has resulted in a variable upper snowpack depending on aspect. On north and east aspects up to 100 cm of dense snow overlies a thick crust from the middle of March. On south and west aspects this crust is on or near the surface. In sheltered features 30 to 40 cm of snow overlies the mid March crust, the snowpack below this layer is well settled and strong.

Weather Summary

Friday Night
Mostly cloudy. 1 to 3 cm of snow. 60 km/h west ridgetop wind. Treeline temperature -12 °C.

Saturday
Mostly cloudy. 1 to 2 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -18 °C.

Sunday
Mix of sun and clouds. 3 to 4 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -15 °C.

Monday
Mostly cloudy. 10 to 15 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -9 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Closely monitor how the new snow is bonding to the crust.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.