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Avalanche Forecast

Archived

Apr 17th, 2019–Apr 18th, 2019

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

Regions

South Coast.

Thursday won't be a fun day in the mountains. Rain will saturate a previously dry alpine snowpack. Best to stay out of alpine avalanche terrain and avoid overhead exposure during the heavy rain.

Confidence

High -

Weather Forecast

WEDNESDAY NIGHT: Cloudy with rain, accumulation 15 mm, moderate to strong southwest wind, treeline temperature 3 C, freezing level 2200 m.

THURSDAY: Cloudy with rain, accumulation 30 to 40 mm, moderate to strong southwest wind, treeline temperature 4 C, freezing level 2500 m.

FRIDAY: Cloudy with rain, accumulation 30 mm, strong southwest wind, treeline temperature 3 C, freezing level 1800 m.

SATURDAY: Mix of sun and clouds, light to moderate northwest wind, treeline temperature -1 C, freezing level 1300 m.

Avalanche Summary

There were no reports on avalanche activity on Tuesday. If you have any recent observations during your travels, we would greatly appreciate it if you posted a photo or any other information to the Mountain Information Network (MIN). Thanks!

Snowpack Summary

Rain to the mountain tops will fall onto dry snow above 1600 m and a consolidated, wet snowpack below 1600 m. The snowpack is rapidly melting below treeline.

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.