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Avalanche Forecast

Archived

Apr 1st, 2018–Apr 2nd, 2018

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

Glacier.

Happy Easter! Recent storm snow is settling into a slab in some locations. Take the time to evaluate the snowpack before committing to your line.

Weather Forecast

Flurries today with accumulation around 6cm. Freezing level should rise to 1300m with alpine highs of -6C accompanied by S winds up to moderate speed.

Snowpack Summary

70cm of storm snow at 1900m in the past week. Strong S'ly winds redistributed the new snow loading lee features. Our field trip around 2100m produced whumphing on planar S'ly features. Storm snow is settling into a cohesive slab on a buried crust down about 30 to 70cm on all aspects up to 2000m, and higher on solar aspects.

Avalanche Summary

An avalanche cycle on March 30th produced numerous avalanches to size 3 in the highway corridor. Evidence of this same cycle were observed in the west end of the park with many of the slides running mid storm and debris already being partially buried.

Confidence

Due to the number of field observations

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.