Initial TDS Installation Catalog http://esrl.noaa.gov/gsd/thredds/catalog/retro/hrrr/conus/wrftwo/2016/09/21/catalog.html

Dataset Size Last Modified
     Folder  21   --
         20160921.zip 57.56 Mbytes 2017-02-23T15:20:37Z

GSD TDS at ESRL/GSD/ITS/DSG see Info
Documentation