Up and down SE sliver on Dunderberg from 9700' (Trumbul Campground) - 12,000'. By 9am, acent snow softened just enough to get some purchase skinning to 10,500', after which booting was necessary due to steepness. Boot penetration kicking steps just a few centimeters to a few inches. Crampons are a good idea. Descent at 10:30-10:45, snow had softened enough for nice turns, but no where near enough to be concerning for wet slides. There were a couple small debris piles (see attached photo) from small loose wet point releases from previous day or two. A couple baseball sized rocks came down gully at me ~9:30am, a reminder that wearing a helmet on ascent is not a bad idea.
*Quite nice spring turns coming down this sliver.
A few scattered high clouds, warm, calm to light winds except at ridge-top at 12,200' where N winds were moderate.
10:30am, @ 12,000': Air temp=+2deg C (36deg C).