Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201705/20170521/catalog.html

Dataset	Size	Last Modified
`20170521`		`--`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2017-05-21 All Cycles & All forecasts`	`178.5 Mbytes`	`2017-05-26T07:35:47.883Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2017-05-21 All Cycles & All forecasts`	`191.3 Mbytes`	`2017-05-26T07:35:22.119Z`
`SRRS GRIB: Smoke : 2017-05-21 All Cycles & All forecasts`	`605.2 Mbytes`	`2017-05-26T07:34:54.249Z`
`SRRS GRIB: National Convective Weather Forecast : 2017-05-21 : All Times`	`148.4 Mbytes`	`2017-05-26T07:30:45.406Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2017-05-21 All Cycles / All Vertical Levels / Analysis`	`28.65 Mbytes`	`2017-05-26T07:30:31.339Z`