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Avalanche Forecast

Archived

Feb 27th, 2026–Feb 28th, 2026

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

Regions

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

Avoid steep south-facing slopes, as you could trigger a large avalanche on a buried weak layer.

Wind slabs are still possible in lee terrain features.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.
  • We are uncertain due to how buried persistent weak layers will react with the forecast weather.

Avalanche Summary

On Friday, many small (size 1) wind slabs were seen in the Blow Me Downs, which were estimated to have occurred within the last 2 days.

A large avalanche occurred on the south aspect of Blue Hill earlier in the week when a rider triggered a slab and was carried by it. Read a report from the field team here.

Snowpack Summary

There is anywhere from 15 to 30 cm of soft snow that fell this week. In wind-exposed areas, it has been redistributed into lee features, forming slabs.

On steep slopes that face the sun, a crust with weak, sugary facets on top has been observed. If triggered, this layer could produce large avalanches.

The mid and lower snowpack is well settled, with no layers of concern.

Weather Summary

Friday Night
Cloudy. 2 to 4 cm of snow with local amounts near 10 cm. 50 km/h west ridgetop wind. Treeline temperature -10 °C.

Saturday
Mix of sun and clouds.  Trace snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -9 °C.

Sunday
Mostly cloudy. 2 to 4 cm of snow. 100 km/h southerly overnight, easing to 40 km/h southwest ridgetop wind. Treeline temperature rising to near zero Saturday night, falling to -4 °C Sunday afternoon..

Monday
Mix of sun and clouds. Near 10 cm of snow. 20 to 50 km/h west ridgetop wind. Treeline temperature -16 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be aware of the potential for large avalanches due to buried weak layers.
  • Be careful as you transition into wind-affected terrain.
  • Use small, low consequence slopes to test the bond of the new snow.
  • Stay off recently wind loaded slopes until they have had a chance to stabilize.

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.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.