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Avalanche Forecast

Archived

Feb 3rd, 2024–Feb 6th, 2024

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

Regions

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

Steady snowfall is coming to the Long Range Mountains! Watch for unstable wind slabs on the steep sides of gullies.

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported.

Strong northeast wind could form isolated wind slabs on Sunday, but wind slabs will be larger and more likely on Monday.

Snowpack Summary

New snow is gradually accumulating, with heavier snow on Monday expected to bring the storm totals into the 20 to 40 cm range. Surface conditions will be shaped by northeast winds that are forecast to increase throughout the day on Sunday.

Snow depths in Long Range Mountains average about 80 cm in wind-sheltered areas and are much more variable in wind-exposed areas. The snowpack structure is strong and bonded.

Cornices have been forming along northeast-facing ridges.

Weather Summary

Saturday Night

Cloudy with 2 to 5 cm of snow, 30 km/h northeast wind, alpine temperature -10 °C.

Sunday

Cloudy with up to 5 cm of snow, 30 to 50 km/h northeast wind increasing to 60 km/h gusts by the evening, alpine temperature -4 °C.

Monday

Cloudy with 15 to 25 cm of snow, 60 to 90 km/h northeast wind, alpine temperature -3 °C.

Tuesday

Gradually clearing skies, no significant precipiation, 20 to 40 km/h northeast wind, alpine temperature dropping to -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Fresh wind slabs will likely form throughout the day, diligently watch for changing conditions.
  • Avalanche danger is often elevated in alpine gullies where snow has accumulated.

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.