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Avalanche Forecast

Archived

Feb 16th, 2024–Feb 17th, 2024

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 wind loaded slopes and give the new snow time to bond. The best riding will be found in sheltered terrain. Check out this MIN from our field team describing conditions on the  Knob.

Confidence

High

Avalanche Summary

No new avalanches have been reported however visibility has been limited.

Snowpack Summary

Northwest winds have scoured and pressed exposed terrain and formed reactive wind slabs on east and south facing slopes. Soft snow can likely be found in sheltered terrain.

Up to 30 cm of recent new snow overlies a thin melt-freeze crust that extends up to ridgetop. Test results show that the new snow is not bonding well to this crust.

The mid and lower snowpack is strong and well settled. The average snowpack depth at upper treeline is now around 100 cm.

Weather Summary

Friday Night

Cloudy with up to 10 cm in the north and trace amounts of new snow in the south. 35 to 55 km/h northwest ridgetop wind. Treeline temperature -10°C.

Saturday

Mostly cloudy with trace amounts of new snow expected.  40 to 60 km/h southwest ridgetop wind. Treeline temperature -11°C.

Sunday

Mostly cloudy with up to 10 cm of new snow expected in the south, less in the north. 40 to 70 km/h west ridgetop wind. Treeline temperature-12°C.

Monday

A mix of sun and cloud with up to 10 cm of new snow expected. 50 to 70 km/h west alpine wind. Treeline temperature -13°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.
  • Wind slabs may be poorly bonded to the underlying crust.
  • Seek out sheltered terrain where new snow hasn't been wind-affected.
  • Use ridges or ribs to avoid areas of wind loaded snow.

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.