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Avalanche Forecast

Archived

Mar 25th, 2015–Mar 26th, 2015

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

Regions

Little Yoho.

Good skiing can be found in areas sheltered from wind effect.  Watch for building windslabs and rising freezing levels in the upcoming days.

Weather Forecast

5 cm new snow is forecasted for tomorrow with moderate to strong SW wind.  There will be a good freeze tonight, but then freezing levels will climb to 2400- 2600 m for Thursday - Saturday. We will not see a strong freeze for the next several days.  Flurries and moderate to strong winds are expected through to Sunday.

Snowpack Summary

5-10  cm new snow fell through the day resulting in a total accumulation of 20 cm new over the week.  Moderate SW winds today have added to the pre-existing wind slabs of up to 35cm deep in immediate lee features of the alpine. The mid pack and base of the snowpack are well settled and well bonded overall.

Avalanche Summary

No avalanches observed or reported today.

Confidence

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.