Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201305/20130521/catalog.html

Dataset	Size	Last Modified
`20130521`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2013-05-21 All Cycles & All forecasts`	`261.4 Mbytes`	`2013-05-25T07:44:34.336Z`
`SRRS GRIB: 1 hour 3X Ozone Concentration : 2013-05-21 All Cycles & All forecasts`	`280.6 Mbytes`	`2013-05-25T07:43:51.169Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2013-05-21 All Cycles & All forecasts`	`261.4 Mbytes`	`2013-05-25T07:43:03.810Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2013-05-21 All Cycles & All forecasts`	`280.6 Mbytes`	`2013-05-25T07:42:21.677Z`
`SRRS GRIB: Smoke : 2013-05-21 All Cycles & All forecasts`	`542.6 Mbytes`	`2013-05-25T07:41:35.083Z`
`SRRS GRIB: National Convective Weather Forecast : 2013-05-21 : All Times`	`187.7 Mbytes`	`2013-05-25T07:40:17.011Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2013-05-21 All Cycles / All Vertical Levels / Analysis`	`234.9 Mbytes`	`2013-05-25T07:40:06.787Z`
`SRRS GRIB: 40 Km U.S. Current Icing Potential : 2013-05-21 All Cycles / All Vertical Levels / Analysis`	`59.60 Mbytes`	`2013-05-25T07:40:01.603Z`