Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201805/20180520/catalog.html

Dataset	Size	Last Modified
`20180520`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2018-05-20 All Cycles & All forecasts`	`426.6 Mbytes`	`2018-05-28T07:49:26.598Z`
`SRRS GRIB: 1 hour 3X Ozone Concentration : 2018-05-20 All Cycles & All forecasts`	`12.71 Mbytes`	`2018-05-28T07:48:43.413Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2018-05-20 All Cycles & All forecasts`	`337.9 Mbytes`	`2018-05-28T07:48:41.801Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2018-05-20 All Cycles & All forecasts`	`353.8 Mbytes`	`2018-05-28T07:48:05.502Z`
`SRRS GRIB: Smoke : 2018-05-20 All Cycles & All forecasts`	`907.9 Mbytes`	`2018-05-28T07:47:27.704Z`
`SRRS GRIB: National Convective Weather Forecast : 2018-05-20 : All Times`	`217.5 Mbytes`	`2018-05-28T07:43:40.658Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2018-05-20 All Cycles / All Vertical Levels / Analysis`	`105.5 Mbytes`	`2018-05-28T07:43:32.146Z`