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Avalanche Forecast

Archived

Mar 9th, 2022–Mar 10th, 2022

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

Regions

Glacier.

Be watchful for isolated pockets of wind slabs.  Consider your exposure and other touring groups that might be effected as you move through wind effected terrain.

Weather Forecast

High pressure ridge will break down Thursday, with an approaching frontal system. Light precip is forecast for the weekend.

Tonight: Cloudy, -17*C, light W wind

Thurs: Sun with cloud, Alp high -11*C, Light W wind

Fri: Flurries,6cm, Alp high -6*C, light SW wind, fz lvl 1100 m

Sat: Flurries,7cm, Alp high -9*C, light, gusting to Mod SW wind, fz lvl 1200m

Snowpack Summary

Northerly ridge top winds have reverse loading lee features in the alpine. Surface crust exists up to ~1500m on all aspects and higher on solar aspects. Soft, dry snow can be found on Northerly terrain features. 30cm of settling snow sits on top of the Feb 26th interface of small surface hoar in sheltered areas and a crust on steep solar aspects.

Avalanche Summary

No new natural avalanches reported or observed in the last 48hrs.

Rider triggered size 2, near miss in Loop Brook drainage, remote triggered slab at ridge top, NE asp, MCR.

MCR from Tuesday of isolated wind slabs in the Illecillewaet drainage.

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.