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Avalanche Forecast

Archived

Apr 6th, 2019–Apr 7th, 2019

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

Regions

South Coast Inland.

Watch out for recently formed wind slabs at higher elevations. The new snow may moisten quickly and form loose wet avalanches if the sun shines.

Confidence

Moderate -

Weather Forecast

SATURDAY NIGHT: Cloudy with snowfall, accumulation 5 cm, moderate to strong southwest wind, alpine temperature -5 C, freezing level 1200 m.SUNDAY: Mix of sun and cloud with intermittent snowfall, trace accumulation, light to moderate southwest wind, alpine temperature -4 C, freezing level 1400 m.MONDAY: Mix of sun and cloud, light southeast wind, alpine temperature -2 C, freezing level 1800 m.TUESDAY: Cloudy with snowfall, accumulation 5 to 10 cm, light northwest wind, alpine temperature -2 C, freezing level 1800 m.

Avalanche Summary

No new avalanches were observed in the region on Friday. The likelihood of triggering loose wet avalanches will increase on Sunday if the sun shines.

Snowpack Summary

Around 20 cm of recent snow fell with strong southerly wind. The snow overlies recent storm snow on high-elevation northerly aspects and a melt-freeze crust elsewhere. Snow is melting rapidly at lower elevations.

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.

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.