Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201803/20180321/catalog.html

Dataset	Size	Last Modified
`20180321`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2018-03-21 All Cycles & All forecasts`	`902.9 Mbytes`	`2018-03-31T08:26:05.429Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2018-03-21 All Cycles & All forecasts`	`112.9 Mbytes`	`2018-03-31T08:24:08.641Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2018-03-21 All Cycles & All forecasts`	`832.3 Mbytes`	`2018-03-31T08:23:52.208Z`
`SRRS GRIB: Smoke : 2018-03-21 All Cycles & All forecasts`	`2.118 Gbytes`	`2018-03-31T08:22:09.639Z`
`SRRS GRIB: National Convective Weather Forecast : 2018-03-21 : All Times`	`541.1 Mbytes`	`2018-03-31T08:14:13.159Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2018-03-21 All Cycles / All Vertical Levels / Analysis`	`253.6 Mbytes`	`2018-03-31T08:14:03.887Z`