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Avalanche Forecast

Archived

Apr 24th, 2019–Apr 25th, 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, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Northwest Inland.

Limited recent field observations mean that this forecast should be used to guide your initial assessment of conditions. See our 'Cold & Snowy' spring scenario for more on managing current conditions.

Confidence

Low - Due to the number of field observations

Weather Forecast

Wednesday night: Clear with cloudy periods. Light southwest winds.

Thursday: A mix of sun and cloud with a chance of isolated flurries. Light variable winds. Alpine high temperatures around -6 with freezing levels to 1400 metres.

Friday: Cloudy with scattered flurries bringing approximately 5 cm of new snow, continuing overnight. Light to moderate southwest winds. Alpine high temperatures around -7 with freezing levels to 1300 metres.

Saturday: Mainly cloudy. Light northeast or northwest winds. Alpine high temperatures around -5 with freezing levels to 1400 metres.

Avalanche Summary

There have been no recent reports of avalanche activity. If you're out we'd love it if you would submit what you're seeing to the Mountain Information Network.

Snowpack Summary

Approximately 15-30 cm of new snow accumulated over the past week at upper elevations. This storm snow sits over a widespread, supportive melt-freeze crust from early April. Surface hoar and facets were previously observed on this crust on high north aspects. At lower elevations, ongoing warm temperatures have been promoting isothermal snowpack conditions and melting the snowpack away.

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.