Building storm slab with new precipitation and wind through the region.
New wind slab will continue to build over the next 12 hours in all open areas with moderate to strong west/south-west winds. Ice Climbers should be especially observant to wind loading patterns when choosing a venue for the day.
Deep persistent slabs are best managed by:
Cornices are best managed by:
A Pacific front, laden with moisture will pass over the park bringing snow and strong Westerly winds for the next 24hrs. By midday Wednesday conditions will clear and freezing levels along with the winds will fall rapidly.
Details here: Mountain Weather Forecast.
New snow falling on to a mix of surfaces; surface facets, surface hoar, and previous windslab and/or hard wind pressed surfaces. New building windslabs in exposed areas in the alpine and treeline. Oct. and Nov. crusts preserved in the mid and lower snowpack; both seem have a good bond to the overlaying snow.
No new avalanches observed or reported.