Avalanche Forecast

Issued: Apr 4th, 2019 4:00PM

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

kdevine, Avalanche Canada

South Columbia.

Expect to find pockets of wind slab at upper elevations, which may be reactive to human triggers. Keep an eye out for changing conditions as prolonged sunny periods will increase the likelihood of loose wet avalanches on sun-exposed slopes.

Summary

Confidence

Moderate -

Weather Forecast

THURSDAY NIGHT - Cloudy with clear periods / southeast winds, 10-20 km/h / alpine low temperature near -2FRIDAY - Cloudy with isolated flurries, 5 cm / southeast winds, 10-20 km/h / alpine high temperature near -1 / freezing level 2000 mSATURDAY -Â Cloudy with isolated flurries / south winds, 10-30 km/h / alpine high temperature near -2 / freezing level 1800 mSUNDAY -Â Cloudy with flurries, 5-10 cm / southwest winds, 25-40 km/h / alpine high temperature near -2 / freezing level 1800 m

Avalanche Summary

On Thursday, there was a report of an explosives triggered size 1.5 slab avalanche.On Tuesday, there was a report of one size 2 natural loose wet avalanche on a south aspect at 2400 m.

Snowpack Summary

Approximately 10 cm of new snow sits on a melt-freeze crust on all aspects except for north facing slopes above 2000 m, where it sits on dry snow and surface hoar (feathery crystals). Below approximately 1800 m, the recent precipitation likely fell as rain. Snow is disappearing rapidly at lower elevations.

Problems

Wind Slabs

Small wind slabs may have formed in lee areas The most suspect slopes will be steep terrain near ridges.

Be careful with wind-loaded pockets, especially near ridge crests and roll-overs.Watch for signs of instability such as whumpfing or cracking.

Aspects: North, North East, North West.

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 1.5

Valid until: Apr 5th, 2019 2:00PM