Avalanche Forecast
Issued: Mar 9th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Catherine Brown,
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.
Summary
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
Isolated wind slab pockets may be found on all aspects, especially with the reverse-loading by N'ly winds. Keep this in mind if you head to more committing/exposed terrain, where a slip/fall could sweep you over a cliff.
- Use caution above cliffs and terrain traps where small slab avalanches may have severe consequences.
- Pay attention to overhead hazards like cornices which could trigger slabs.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 10th, 2022 4:00PM
