Recent snowfall has created a fresh storm slab, this problem will be most persistent in shaded lee features, especially where the new snow sits on a crust.
The sun is packing a punch this time of year, avoid exposure to solar slopes during the heat of the day.
New snow sits on a crust in most locations. Recent skier triggering of this layer suggests it may persist for a few more days, especially on shaded slopes with dry storm snow on a crust. Natural slab avalanches will also be possible on solar slopes during the heat of the day.
Strong solar warming will destabilize the upper snowpack. Avoid exposure to solar slopes when the sun is strong.
There was a report of skier triggered size 2 slab avalanche on the Youngs peak headwall on Thursday.
On Wednesday there was a natural avalanche cycle on solar slopes. With several slab and loose snow avalanches up to size 2.5 in the highway corridor and in the backcountry.
A group of skiers also reported triggering a size 2 on Video Peak on Wednesday.
A fresh surface crust has formed on all but high north aspects, and is breaking down with daytime warming.
Up to 40cms of new snow sits on top of a variety of previous old spring surfaces - mainly a moist/wet crust, and pockets of dry snow on high N aspects.
A thick rain crust from the March atmospheric river sits 20-50cm below the surface.
Below treeline expect strong diurnal swings, with crust and refrozen tree bombs/avalanche debris in the AM, and soft sticky snow in the PM.
Stable weather into the weekend, as high pressure sets up over the region.
Tonight Clear periods. Alpine Low -9°C. Freezing level(FZL) Valley Bottom. Light W ridgetop wind.
Friday A mix of sun and cloud. Alpine High -5°C. FZL 1800m. Light West wind.
Sat A mix of sun and cloud. Low -7 °C, High 0 °C. FZL 2100m. Light SW wind.
Sun A mix of sun and cloud. Low 0 °C, High 4 °C. FZL 2600m. Gusty strong SW wind.
