Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201709/20170921/catalog.html

Dataset	Size	Last Modified
`20170921`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2017-09-21 All Cycles & All forecasts`	`640.5 Mbytes`	`2017-09-29T07:56:09.190Z`
`SRRS GRIB: 1 hour 3X Ozone Concentration : 2017-09-21 All Cycles & All forecasts`	`26.06 Mbytes`	`2017-09-29T07:54:56.967Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2017-09-21 All Cycles & All forecasts`	`558.2 Mbytes`	`2017-09-29T07:54:53.270Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2017-09-21 All Cycles & All forecasts`	`602.3 Mbytes`	`2017-09-29T07:54:00.369Z`
`SRRS GRIB: Smoke : 2017-09-21 All Cycles & All forecasts`	`1.497 Gbytes`	`2017-09-29T07:53:01.506Z`
`SRRS GRIB: National Convective Weather Forecast : 2017-09-21 : All Times`	`386.5 Mbytes`	`2017-09-29T07:45:59.173Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2017-09-21 All Cycles / All Vertical Levels / Analysis`	`69.01 Mbytes`	`2017-09-29T07:45:50.631Z`