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Avalanche Forecast

Archived

Mar 30th, 2024–Apr 2nd, 2024

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
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.

Regions

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

A thick surface crust makes for generally safe avalanche conditions but difficult travel. Alpine terrain features with a surviving snowpack are also where you'll find cornices overhead.

Confidence

Moderate

Avalanche Summary

Early last week, a natural avalanche cycle was reported on north to east aspects in the alpine. Slabs were up to size 2.5 with crowns up to 100 cm deep, sliding on a crust layer. Thank you for the amazing MIN reports! Check out the photos on this one!

Avalanche activity is expected to have subsided with the dryer, cooler conditions this weekend.

Snowpack Summary

The surface of the rain-soaked snowpack is refreezing into a crust under cool temperatures. Rain has washed away the snowpack in many areas. Areas where the snowpack is most likely to have survived include previously wind-loaded leeward terrain features such as north-facing alpine bowls, gullies and ridgelines. These are also the types of features where large cornices loom above.

Weather Summary

Saturday night

Mostly cloudy. Ridgetop wind 30 to 50 km/h south. Alpine temperature 0 C. Freezing level 300 m.

Sunday

Cloudy. Ridgetop wind 10 to 20 km/h southeast. Alpine temperature -1 C. Freezing level 200 m.

Monday

Mostly cloudy. Ridgetop wind 10 to 30 km/h east. Alpine temperature -1 C. Freezing level 200 m.

Tuesday

A mix of sun and cloud. Ridgetop wind 20 to 40 km/h northeast. Alpine temperature +1 C. Freezing level 500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Winter conditions may exist in gullies, alpine bowls, and around ridgelines.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
  • Caution around slopes that are exposed to cornices overhead.
  • Large cornice falls are dangerous on their own.

Problems

Cornices

Cornice Fall is the release of an overhanging mass of snow that forms as the wind moves snow over a sharp terrain feature, such as a ridge, and deposits snow on the downwind (leeward) side. Cornices range in size from small wind drifts of soft snow to large overhangs of hard snow that are 30 feet (10 meters) or taller. They can break off the terrain suddenly and pull back onto the ridge top and catch people by surprise even on the flat ground above the slope. Even small cornices can have enough mass to be destructive and deadly. Cornice Fall can entrain loose surface snow or trigger slab avalanches.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.