**NEW** Area closures for avalanche control are in effect intermittently from November to May. If not described in the bulletin headline below, the area is open. For more information and maps, click the link below under "Resources".
Recent snow is being moved around by the SW winds and forming thin wind slabs in immediate lee areas. These slabs can fail on the either the weak facets or the Dec 15 layer, and have been triggered by climbers and skiers in the last few days.
Loose dry surface snow avalanches will continue to be a problem in steep rocky areas and gullies until the facets round out and begin to bond better. Additionally, we have small amounts of new low density snow adding to the problem.
Deep persistent slabs are best managed by:
Cornices are best managed by:
The forecast calls for up to 20cm of new snow by the end of Wednesday. Temperatures are also expected to drop into the -15 range by Thursday, with cloudy skies throughout. Wind is expected to increase in to the moderate range throughout Tuesday from the SW.
45cm of snow now sits over the Dec 15 layer of surface hoar or sun crust, and is developing soft slab properties with the warmer temps wind and approx 10cm of new snow. Below this the snowpack is heavily faceted with remnants of older crust's still lingering throughout. Concern remains in steep faceted gully's where loose dry avalanches can occur.
No avalanches were observed or reported today in Little Yoho, however the Lake Louise ski area reported that patrollers could ski cut size 1 loose dry avalanches in very steep and confined terrain.