An unusual late season (3’rd since 2000) Atmospheric River moved into the region late Thursday into Saturday with heavy wet snow above ~7500’ upper elevations deposited on a well developed spring type snowpack (consolidated, melt/freeze crust at the surface). As per usual with these storms, it came in warm and wet then cooling and depositing lighter density snow as the system exits the region. This storm dropped 1.2” to 6” of liquid water equivalent (Mammoth Mountain) along the eastern Sierra since late Thursday evening. Storm totals for this system ranged from 19” at Tioga Pass to 37” at Mammoth Mountain. Snowfall was heaviest from June Mountain south. The system came in with moderate to strong Southwesterly flow (typical of these Atmospheric River storms) with winds gusting over 100 at ridgetops, which formed Wind Slabs throughout the region above ~7000’ in exposed areas. The new snow has begun to bond to the old/new snow interface and shows signs that it was deposited right side up (denser snow towards the bottom, lighter snow toward the surface). This has helped to lower the threat of Storm Slabs, as well as time, but the strong SW winds during the storm formed sensitive wind slabs primarily on NW-N-NE-E-SW aspects. The Wind Slabs that formed during the storm continue to strengthen and bond to the underlying snow. Due to the strong winds associated with the last storm system, localized channeling Wind Slabs formed in unusual locations and in normally sheltered terrain. Southwest winds of 10 to 15 above 10,000’ are forecasted for Monday, which is just below threshold for wind transport, if winds are stronger than forecasted, they could possibly form additional isolated Wind Slabs below ridgelines and near terrain features that promote drifting in the upper elevations. Tuesday SW winds will be at threshold with some drifting expected in the mid to upper elevations, possibly forming isolated Wind Slabs on NW-N-NE-E-SE aspects where leeward fetches still have snow available for transport. As the latest storm moves off to the east, temperatures are rebounding into to seasonable and under the intense April sun, the surface snow warms quickly, loosing internal cohesion, which can result in Wet Loose releases as the snow thaws during the day. These will be primarily encountered on solar aspects in the mid to upper elevations, lower elevations the daily warming can be enough to thaw all aspects extending the concern to all aspects.