Avalanche Forecast

Issued: Jan 31st, 2014 8:25AM

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

Avalanche Canada triley, Avalanche Canada

Summary

Confidence

Good

Weather Forecast

Overnight and Saturday: Clear and cold overnight with light Northerly winds and no precipitation. Mostly sunny with a chance of valley cloud in the morning. Mix of sun and cloud with a chance of very light precipitation in the evening. Light Westerly winds during the day and freezing levels at about 500 metres.Sunday: Mix of sun and cloud with a chance of very light precipitation. Light Northwest winds and freezing levels at about 500 metres.Monday: Mostly sunny with light Northeast winds and alpine temperatures dropping to about -20 C.

Avalanche Summary

No new avalanches reported.

Snowpack Summary

There is about 5 cm of light dry new snow that has buried the melt-freeze crust that developed last week. The crust has been reported to be very hard with no foot penetration on solar aspects, and variable with a 10-15 cm foot penetration on shaded North aspects. There was widespread surface hoar at and below treeline before the new snow arrived, and can be found well preserved below the thin layer of new snow. Cold alpine temperatures are facetting the near surface snow at higher elevations. Some pockets of very soft slab have developed due to wind transported new snow. Deeply buried weak layers continue to exist, however the bridging effect of the re-frozen upper snowpack may reduce the likelihood of triggering.

Problems

Wind Slabs

An icon showing Wind Slabs
Changing winds may have developed thin pockets of wind slab in the alpine. Watch for reverse loading as the winds change direction.
Avoid freshly wind loaded features.>Avoid travelling in areas that have been reverse loaded by winds.>

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Feb 1st, 2014 2:00PM

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