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Avalanche Forecast

Archived

Feb 1st, 2025–Feb 2nd, 2025

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

Regions

Little Yoho.

In the past 48 hours, 20-40cm of new snow has fallen. This will refresh the skiing but has buried a prominent weak layer. We suspect the new snow will be reactive in the short term.

Get ready for a cold week ahead.

Confidence

Moderate

Avalanche Summary

There were reports of numerous natural avalanches to size 2 on multiple aspects and elevations including below treeline. These were on Mount Burgess, Dennis, Field, Stephen and Cathedral.

Snowpack Summary

In the past couple of days, 20-40cm of snow has fallen in the area at treeline. This sits on a weaker layer (Jan. 30) of crust, surface hoar, and facets. The mid and lower snowpack is well settled, with snowpack depths at the treeline ranging from 120cm to 180cm.

Weather Summary

Expect up to 5cm Saturday night and trace amounts on Sunday. Winds will decrease, and cold air will start to creep in for the foreseeable future. Temperatures will range from -20 to -30C next week.

Terrain and Travel Advice

  • Closely monitor how the new snow is bonding to the old surface.

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.

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.