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Avalanche Forecast

Archived

Apr 5th, 2015–Apr 6th, 2015

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

Regions

Little Yoho.

Spring conditions are here. Cornices are  immense, fragile and susceptible to heat in the start zones. Early starts and early finishes minimize your exposure to deteriorating snowpack conditions and other hazards. PJ

Weather Forecast

Some convective flurries can expected through tonight and tomorrow and then an upper ridge will strengthen through early next week with sunny, warm and dry weather on Tuesday and Wednesday. Freezing levels will increase as the week continues up to 2000 meters and winds will remain light from the SE tomorrow.

Snowpack Summary

Storm snow amounts varied from 26cms in Lake Louise & 8-10 cms at Bow Summit and the Wapta. This low density snow did not exhibit much in the way of slab properties today. The interface with the old snow surfaces appears to be bonding well on solar aspects but on north the interface is reactive to ski cuts on terrain steeper than 30 degrees.

Avalanche Summary

Loose snow natural avalanches up to size 1.5 were observed in the alpine in isolated locations as well as some natural storm slab failures up to size 1-1.5 at treeline.

Confidence

Timing or intensity of solar radiation is uncertain on Tuesday

Problems

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.