Avalanche Forecast

Issued: Jan 27th, 2017 7:39AM

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

Parks Canada andrew jones, Parks Canada

Wind slabs lurk in exposed places at higher elevations. With weekend crowds, maintain awareness of other groups above and below you.

Summary

Weather Forecast

A weak SW flow is establishing but forecasted precipitation remains light. Trace amounts of snow today with freezing levels staying below 900m. Ridge wind will be SW 20km/h with an alpine temperature of -8.

Snowpack Summary

40cm of snow from last week's storm is settling and is generally bonding. In isolated areas it overlies surface hoar and may be reactive. Variable wind effect exists in the alpine, and steep S aspects have a breakable suncrust. Snowpack tests indicate that the snowpack is stubborn to triggering, however it is weakest a low elevations

Avalanche Summary

We received a report of a size 2 natural slab avalanche on Mt Swanzy in the Loop Brook area, though it is unclear how old the slide is. Natural activity has generally been limited to sluffing from steep unskiable terrain.

Confidence

Problems

Wind Slabs

An icon showing Wind Slabs
Wind slabs exist at ridge-top and on cross-loaded alpine features. They overlie a variety of surfaces, and are of most concern on steep terrain where the consequences of even a small avalanche are high, such as over cliffs and terrain traps.
Be careful with wind loaded pockets, especially near ridge crests and roll-overs.Choose well supported terrain without convexities.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

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