Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201805/20180521/catalog.html

Dataset	Size	Last Modified
`20180521`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2018-05-21 All Cycles & All forecasts`	`692.9 Mbytes`	`2018-05-30T08:10:24.641Z`
`SRRS GRIB: 1 hour 3X Ozone Concentration : 2018-05-21 All Cycles & All forecasts`	`20.75 Mbytes`	`2018-05-30T08:09:13.015Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2018-05-21 All Cycles & All forecasts`	`557.4 Mbytes`	`2018-05-30T08:09:10.223Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2018-05-21 All Cycles & All forecasts`	`584.8 Mbytes`	`2018-05-30T08:08:05.387Z`
`SRRS GRIB: Smoke : 2018-05-21 All Cycles & All forecasts`	`1.513 Gbytes`	`2018-05-30T08:07:12.680Z`
`SRRS GRIB: National Convective Weather Forecast : 2018-05-21 : All Times`	`399.8 Mbytes`	`2018-05-30T08:00:55.750Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2018-05-21 All Cycles / All Vertical Levels / Analysis`	`161.4 Mbytes`	`2018-05-30T08:00:47.359Z`