National Centers for Environmental Information / National Operational Model Archive and Distribution System Catalog https://www.ncei.noaa.gov/thredds/catalog/model-narrmon-b-files/201212/20121201/catalog.html

Dataset Size Last Modified
     Folder  20121201   --
         narrmon-b_221_20121201_0000_000.grb 1.344 Mbytes 2013-03-04T17:14:41.242Z

NCEI-NC THREDDS Server at NCEI see Info
Documentation