Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201707/20170721/catalog.html

Dataset	Size	Last Modified
`20170721`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2017-07-21 All Cycles & All forecasts`	`564.5 Mbytes`	`2017-07-27T07:39:19.872Z`
`SRRS GRIB: 1 hour 3X Ozone Concentration : 2017-07-21 All Cycles & All forecasts`	`5.737 Mbytes`	`2017-07-27T07:38:18.442Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2017-07-21 All Cycles & All forecasts`	`453.1 Mbytes`	`2017-07-27T07:38:17.662Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2017-07-21 All Cycles & All forecasts`	`494.8 Mbytes`	`2017-07-27T07:37:21.208Z`
`SRRS GRIB: Smoke : 2017-07-21 All Cycles & All forecasts`	`1.210 Gbytes`	`2017-07-27T07:36:22.535Z`
`SRRS GRIB: National Convective Weather Forecast : 2017-07-21 : All Times`	`322.3 Mbytes`	`2017-07-27T07:31:16.807Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2017-07-21 All Cycles / All Vertical Levels / Analysis`	`62.12 Mbytes`	`2017-07-27T07:31:08.640Z`