Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201712/20171218/catalog.html

Dataset	Size	Last Modified
`20171218`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2017-12-18 All Cycles & All forecasts`	`799.7 Mbytes`	`2017-12-27T09:01:31.634Z`
`SRRS GRIB: 1 hour 3X Ozone Concentration : 2017-12-18 All Cycles & All forecasts`	`23.85 Mbytes`	`2017-12-27T09:00:09.102Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2017-12-18 All Cycles & All forecasts`	`660.4 Mbytes`	`2017-12-27T09:00:05.514Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2017-12-18 All Cycles & All forecasts`	`694.3 Mbytes`	`2017-12-27T08:59:01.264Z`
`SRRS GRIB: Smoke : 2017-12-18 All Cycles & All forecasts`	`1.796 Gbytes`	`2017-12-27T08:57:50.914Z`
`SRRS GRIB: National Convective Weather Forecast : 2017-12-18 : All Times`	`456.7 Mbytes`	`2017-12-27T08:49:09.128Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2017-12-18 All Cycles / All Vertical Levels / Analysis`	`124.7 Mbytes`	`2017-12-27T08:49:01.644Z`