Other blog posts showing examples of hole punch features can be found at this link.
Hole punch cloud features over Wisconsin and Illinois

GOES-16 “Red” Visible (0.64 µm) and Near-Infrared “Snow/Ice” (1.61 µm) images [click to play animated GIF | MP4]
The GOES-16 Cloud Top Temperature derived product (below) showed that values were generally in the -30 to -35ºC range.

GOES-16 Cloud Top Temperature product [click to play animated GIF | MP4]