Avalanche Forecast

Issued: Apr 23rd, 2016 8:40AM

The alpine rating is below threshold, the treeline rating is below threshold, and the below treeline rating is below threshold. Known problems include Storm Slabs.

Avalanche Canada pgoddard, Avalanche Canada

Spring conditions. Localised storm slabs may develop this weekend.

Summary

Weather Forecast

A cold front is expected to pass through tonight, with showers lingering on Sunday. The front brings 10-20 cm snow and moderate SW winds, which switch to NW behind the front. The freezing level should fall to valley floor by Sunday morning. Skies start to clear on Monday, although low cloud may linger in the valleys.

Avalanche Summary

No recent avalanches have been reported. A couple of large wet slab avalanches were observed in the NW Inland area. Most operators have shut down for the season. Please continue to share your backcountry observations through the Mountain Information Network.

Snowpack Summary

As temperatures gradually cool through the weekend, loose wet and wet slab avalanches will become less likely. Storm slabs may develop in the alpine as the cold front passes through. At lower elevations, monitor the overnight freeze of the snow surface. If the snow surface does not freeze overnight or if the crust is thin or breakable, daytime heating or rain will weaken the snowpack much more quickly than if there is a well frozen thick crust. Low elevation and thin snowpack areas are isothermal.

Problems

Storm Slabs

An icon showing Storm Slabs
Forecast new snow and wind may form storm slabs at upper elevations.
Choose well supported terrain without convexities.>Be cautious as you transition into wind affected terrain.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Apr 24th, 2016 2:00PM

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