Avalanche Forecast

Issued: Feb 15th, 2019 5:26PM

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

Avalanche Canada shorton, Avalanche Canada

Watch for wind slabs at upper elevations.

Summary

Confidence

Moderate - Wind speed and direction is uncertain

Weather Forecast

FRIDAY NIGHT: Cloudy with isolated flurries, light southwest wind, alpine temperatures drop to -8 C.SATURDAY: Cloudy with sunny periods, light wind, alpine high temperatures around -5 C.SUNDAY: Sunny with cloudy periods, light wind, alpine high temperatures around -8 C.MONDAY: Sunny with cloudy periods, moderate northwest wind, alpine high temperatures around -8 C.

Avalanche Summary

No recent avalanche activity has been reported. On Wednesday, numerous size 2 loose dry and storm slab avalanches were reported on all aspects in the south of the region, particularly in the Cheam area where the storm slabs were thicker.

Snowpack Summary

5-15 cm of low density snow sits above a mix of hard wind affected snow and possibly crusts on south-facing features. Several crusts can be found 40-80 cm below the surface. At higher elevations cold temperatures have been working to facet and break down these crusts. In sheltered terrain at and below treeline, a layer of weak feathery surface hoar or sugary facets may be identified around these crusts, but this interface has produced little recent avalanche activity. The remainder of the snowpack is generally well-settled.

Problems

Wind Slabs

An icon showing Wind Slabs
Recent wind has formed slabs in exposed terrain in the alpine and at upper treeline elevations. A buried crust on south-facing features may increase the likelihood of human triggering.
Minimize exposure to steep planar south-facing slopes.Be cautious as you transition into wind affected terrain.Watch for whumpfing, hollow sounds, and shooting cracks.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 1.5

Valid until: Feb 16th, 2019 2:00PM

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