Initial TDS Installation Catalog http://esrl.noaa.gov/gsd/thredds/catalog/retro/hrrr/conus/wrftwo/2016/12/18/catalog.html

Dataset Size Last Modified
     Folder  18   --
         20161218.zip 61.04 Mbytes 2017-02-23T15:37:58Z

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