More new snow and warm temperatures will promote slab development and increase the likelihood of triggering today. Storm slabs are most reactive on steep, unsupported and cross-loaded terrain features.
Deep persistent slabs are best managed by:
Cornices are best managed by:
Warm temperatures and snow all day today, up to 20cm. Freezing level near 1700m. An above freezing layer is still possible today with associated rain above valley bottom but below mountain top. Light to moderate precipitation over the interior ranges on Saturday. Freezing levels will stay high between 1000 and 1500m. Flurries continue on Sunday.
15cm new snow in 24hrs has not yet bonded to the wind affected and facetted old surface below. 60cm of settled, progressively stiffer snow below that sits over a dense midpack. The Dec 27th surface hoar/crust is down 100cm, the Dec 11th surface hoar can still be found down 150cm.
Numerous avalanches were observed in the highway corridor yesterday up to size 3.5. Frequent flyer went naturally yesterday size 2 across the Connaught Creek uptrack and several naturals were observed in the North paths off Cheops. Skier accidentals this week on MacDonald West Shoulder # 4 (see photo here), Video Peak and Grizzly Colouir (see MIN).