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Avalanche Forecast

Archived

Mar 1st, 2024–Mar 2nd, 2024

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

Avalanche hazard exists primarily in alpine bowls, gullies and ridgelines where the snowpack has survived the recent rain, and new snow is being wind loaded over a slippery crust.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported. Wind slabs sitting on a crust are expected to be reactive both naturally and to rider triggers.

Snowpack Summary

10 to 30 cm of recent snow sits over a thick crust or directly on the ground in areas where the snowpack was washed away by the recent rain. In exposed terrain, the recent snow has been redistributed into lee features by strong west winds.

In the high alpine, greatest snowpack depths are in the range of 1 m. Elsewhere, most areas are below threshold for avalanches.

Weather Summary

Friday night

Snowsqualls, up to 10 cm concentrated around Gros Morne. Southwest wind 60-70 km/h. Alpine temperature -12 °C.

Saturday

Snowsqualls up to 5 cm in the morning then clearing to a mix of sun and cloud. West wind 30-50 km/h switching southwest and easing overnight. Alpine temperature -6 °C.

Sunday

Mostly cloudy with up to 5mm of mixed precipitation concentrated south of Port au Port. West wind 20-40 km/h. Alpine daytime high +2 °C, overnight low -14 °C.

Monday

Sunny. Northwest to northeast wind <20 km/h. Alpine daytime high -5 °C, overnight low -15 °C.

Tuesday

Cloudy. South to southwest wind 20-40 km/h. Alpine temperature 0 °C.

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.
  • Avoid freshly wind loaded terrain features.
  • Wind slabs may be poorly bonded to the underlying 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.