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Avalanche Forecast

Archived

Mar 28th, 2019–Mar 29th, 2019

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

Regions

Sea To Sky.

It is going to be a sunny day with a few clouds. Solar input will increase the potential for triggering loose wet avalanches.

Confidence

High - The weather pattern is stable

Weather Forecast

THURSDAY NIGHT: Clear, light easterly wind, alpine temperature -3 C, freezing level 1800 mFRIDAY: Mainly sunny, light northerly wind, alpine temperatures -2 C, freezing level 2000 m.SATURDAY: Mainly sunny, light southerly wind, alpine temperature -2 C, freezing level 2000 mSUNDAY: Mix of sun and cloud, light south wind, alpine temperature -2 C, freezing level 2000 m

Avalanche Summary

On Wednesday several loose dry and wind slab avalanches up to size 1.5 were observed on northerly aspects in the alpine and at treeline. A few wet loose avalanches up to size 2 were observed on solar aspects. On Tuesday several loose avalanches and slab avalanches up to size were reported.

Snowpack Summary

The recently formed wind slabs in the alpine are bonding well to the underlying layers, but there might still be isolated pockets which can be triggered by humans. On higher north aspects above 2000 m the recent new snow is sitting on dry, faceted snow. At most other places the new snow is sitting on either moist snow or a crust. Below 1800 m the entire snowpack is isothermal [wet and slushy] underneath the melt/freeze crust.

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.