Initial TDS Installation Catalog http://esrl.noaa.gov/gsd/thredds/catalog/retro/hrrr/conus/wrftwo/2014/04/20/catalog.html

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     Folder  20   --
         20140420.zip 58.48 Mbytes 2017-01-19T19:35:58Z

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