Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201712/20171220/catalog.html

Dataset	Size	Last Modified
`20171220`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2017-12-20 All Cycles & All forecasts`	`780.6 Mbytes`	`2017-12-28T09:46:31.331Z`
`SRRS GRIB: 1 hour 3X Ozone Concentration : 2017-12-20 All Cycles & All forecasts`	`46.65 Mbytes`	`2017-12-28T09:42:05.942Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2017-12-20 All Cycles & All forecasts`	`668.9 Mbytes`	`2017-12-28T09:41:52.227Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2017-12-20 All Cycles & All forecasts`	`714.4 Mbytes`	`2017-12-28T09:38:17.376Z`
`SRRS GRIB: Smoke : 2017-12-20 All Cycles & All forecasts`	`1.815 Gbytes`	`2017-12-28T09:34:44.700Z`
`SRRS GRIB: National Convective Weather Forecast : 2017-12-20 : All Times`	`448.3 Mbytes`	`2017-12-28T09:06:23.710Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2017-12-20 All Cycles / All Vertical Levels / Analysis`	`96.38 Mbytes`	`2017-12-28T09:06:01.795Z`