Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/202004/20200421/catalog.html

Dataset	Size	Last Modified
`20200421`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2020-04-21 All Cycles & All forecasts`	`640.0 Mbytes`	`2020-04-28T09:41:42.991Z`
`SRRS GRIB: 1 hour 3X Ozone Concentration : 2020-04-21 All Cycles & All forecasts`	`19.00 Mbytes`	`2020-04-28T09:38:22.953Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2020-04-21 All Cycles & All forecasts`	`551.1 Mbytes`	`2020-04-28T09:38:17.694Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2020-04-21 All Cycles & All forecasts`	`611.5 Mbytes`	`2020-04-28T09:35:39.558Z`
`SRRS GRIB: Smoke : 2020-04-21 All Cycles & All forecasts`	`1.497 Gbytes`	`2020-04-28T09:32:58.201Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2020-04-21 All Cycles / All Vertical Levels / Analysis`	`146.8 Mbytes`	`2020-04-28T09:00:56.793Z`