Avalanche Forecast

Issued: Feb 27th, 2017 8:01AM

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

Parks Canada dean flick, Parks Canada

Watch for unstable snow on isolated terrain features; identify features of concern. Skier reactive wind slabs on both south and north aspects are likely to be found on the immediate lee of ridges. Cornice failure is a major concern today in the sun.

Summary

Weather Forecast

Today, sunny with cloudy periods, nil for precipitation. Alpine temperature high of -15C. Ridge wind will be light out of the west. Freezing level at valley bottom. Stay aware of possible periods of intense solar affecting the slopes you are on and terrain above you - cornices will weaken in direct sun.

Snowpack Summary

In the alpine and treeline elevations, expect to find wind affected snow in wind exposed areas and immediately below ridge crests - these areas are more likely to be avalanche trigger zones. Good quality skiing can be found in locations that are less disturbed by the wind. Below 1500m crusty conditions exist. Direct sun will bring the hazard up.

Avalanche Summary

Skier triggered and natural sluffing has been observed on steeper slopes over 35deg. These avalanches were generally small but could push you into terrain traps and trees. On Friday, there were three size 1.5 storm slabs on Glacier Crest and a size 2.0 NC in the Crossover slidepath. Macdonald Gully 6 had a size 3.0 NC, running to almost full extent

Confidence

Problems

Wind Slabs

An icon showing Wind Slabs
Mod winds out of the south and recently out of the north have likely formed wind slabs below ridge crests on all aspects.
Use caution in lee areas. Recent wind loading have created wind slabs.Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Loose Dry

An icon showing Loose Dry
Sluffing in top 10-20cm, specific to steep terrain 35-40deg+
Use caution above cliffs where small avalanches may have severe consequences.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Feb 28th, 2017 8:00AM