Avalanche Forecast

Issued: Apr 7th, 2019 3:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is low. Known problems include Wind Slabs.

dsaly, Avalanche Canada

Kootenay Boundary.

Wind has redistributed recent snowfall. The deepest and most reactive deposits will be around ridgetop and in lee terrain.

Summary

Confidence

Moderate -

Weather Forecast

SUNDAY NIGHT: Mostly cloudy / southwest wind, 10-30 km/h / alpine temperature -2 C / freezing level 1300 mMONDAY: Cloudy with isolated flurries, 5-10 cm accumulation / south wind, 15-35 km/h / alpine temperature -1 C / freezing level 1800 mTUESDAY: Cloudy with snowfall, 10 cm accumulation / north wind, 20-35 km/h / alpine temperature -2 C / freezing level 1900 mWEDNESDAY: Cloudy with sun and scattered flurries, 10 cm accumulation / west-northwest wind 10-25 km/h / alpine temperature -1 C / freezing level 1700 m

Avalanche Summary

On Saturday, explosives triggered small (size 1-1.5) storm slab avalanches up to 30 cm deep. Skier traffic triggered small pockets of storm snow with the deepest (up to 40 cm) and most reactive deposits in specific lee terrain.Numerous small loose wet avalanches were observed on Friday during daytime warming. Continuing with the spring theme, the likelihood of triggering loose wet avalanches will increase if the sun shines, especially in areas with fresh snow.

Snowpack Summary

Around 20 cm snowfall over the weekend and continuing flurries are being redistributed by southwesterly winds. Slabs have formed in lee features at upper treeline and alpine elevations. The recent snow overlies a melt-freeze crust or wet snow; below 1500 m the snowpack is wet and rapidly melting.

Problems

Wind Slabs

Recent snow above 1500 m has been redistributed by southwest wind. Apply added caution in lee terrain features, where deposits will be deepest and most reactive.

Expect conditions to change rapidly with elevation.Be careful with wind-loaded pockets, especially near ridge crests and roll-overs.Use extra caution on slopes if the snow is moist or wet.

Aspects: North, North East, East, South East, West, North West.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Apr 8th, 2019 2:00PM