alt Catalog http://mtarchive.geol.iastate.edu/thredds/catalog/mtarchive/2013/08/21/gempak/mos/catalog.html

Dataset Size Last Modified
     Folder  mos   --
         2013082112_gmos.gem 3.065 Mbytes 2013-08-22T08:00:02Z
         2013082100_gmos.gem 3.065 Mbytes 2013-08-22T08:00:02Z

ISU MTArchive at ISU MTArchive see Info
THREDDS Data Server [Version 4.6.14 - 2019-07-23T11:04:31-0600] Documentation