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Avalanche Forecast

Archived

Mar 23rd, 2024–Mar 26th, 2024

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

Regions

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

Rain will cause wet avalanches on Sunday and then a surface crust will form on Monday.

Confidence

Moderate

Avalanche Summary

Wind slabs formed over the past few days, but by Sunday morning the main problem will become wet loose avalanches caused by rain falling on dry snow.

Snowpack Summary

Wet surfaces are expected with Sunday's rain, which will form a rain crust when temperatures cool on Monday.

20 to 50 cm of recent snow sits above a widespread crust layer. Strong southerly winds have scoured windward slopes and formed deeper deposits on lee terrain features.

Many parts of the region have low snow coverage and lower elevation terrain is likely thin and rocky.

Weather Summary

Saturday Night

Storm approaching with 3 to 8 cm of snow. 40 km/h south wind. Mountain temperatures -5 °C.

Sunday

Snow switching to freezing rain and then rain in the morning with up to 30 mm in the south and 10 mm in the north. 100 km/h south wind. Mountain temperatures reach +4 °C as freezing levels climb to 2000 m.

Monday

Mix of sun and cloud. 20 km/h northwest wind. Mountain temperatures drop to -8 °C.

Tuesday

Mix of sun and cloud. 20 km/h northeast wind. Mountain temperatures -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Minimize exposure during periods of heavy loading from rain.
  • Loose avalanches may start small but they can grow and push you into dangerous terrain.
  • Avoid steep convex slopes.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

Problems

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.