Avalanche Forecast

Issued: Feb 27th, 2016 8:00AM

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

Parks Canada andrew jones, Parks Canada

The snowpack is stabilizing but large avalanches are still possible. Careful group management and regular caution are required for safe travel under these conditions.

Summary

Weather Forecast

A short break between frontal systems today. Mainly cloudy, isolated flurries and trace amounts of accumulation. Freezing levels rise to 1600m with an alpine high of -3. West winds 20km/h gusting to 50km/h at ridge top. The next front arrives tomorrow morning with strong SW winds and up to 15cm of new snow. Freezing levels remain below 1600m.

Snowpack Summary

8cm of new snow sits on a breakable crust on SE through W aspects and widespread surface hoar. Soft slabs in the upper 50cm can be found near ridge crests, but are more stubborn to move now. The February 10th surface hoar / sun crust is down 50-90cm and is much less reactive than a few days ago.

Avalanche Summary

Yesterday there was an isolated natural avalanche cycle of loose solar triggered avalanches on steep, south-southwest facing slopes up to size 2.

Confidence

Problems

Persistent Slabs

An icon showing Persistent Slabs
The Feb 10th layer is buried 50-90cm. In some areas there is surface hoar on a crust, creating a dangerous combination. Sensitivity to triggering is variable among terrain features and careful consideration is required. Dig down and test this layer.
Avoid convexities or areas with a thin or variable snowpack.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Valid until: Feb 28th, 2016 8:00AM