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Avalanche Forecast

Archived

Jan 29th, 2014–Jan 30th, 2014

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Sea To Sky.

Confidence

Fair - Intensity of incoming weather systems is uncertain

Weather Forecast

Overnight and Thursday: Snow is forecast overnight and Thursday as the Arctic front moves south and cools the moist air left behind as the low pressure moves to the Southeast. Expect 3-5 cm in the North and 5-10 cm in the South. Light to moderate Northwest winds and freezing levels dropping down to about 500 metres by morning.Friday: Mix of sun and cloud as the cold arctic air dries out the airmass. Freezing levels at valley bottoms and moderate Northwest winds. Alpine temperatures around -12 C.Saturday: Mostly sunny with alpine temperatures around -10 C and light Westerly winds.

Avalanche Summary

No new avalanches reported.

Snowpack Summary

A solid melt-freeze crust has developed at all elevations on most aspects. New snow may bury surface hoar that has grown at and below treeline over the past few days. In the alpine new snow may not bond to the old surface depending on the timing of the cooling. 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

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.