Initial TDS Installation Catalog http://esrl.noaa.gov/gsd/thredds/catalog/retro/hrrr/conus/wrftwo/2014/08/21/catalog.html

Dataset Size Last Modified
     Folder  21   --
         20140821.zip 80.41 Mbytes 2017-01-19T20:01:24Z

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