Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/200904/20090421/catalog.html

Dataset	Size	Last Modified
`20090421`		`--`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2009-04-21 All Cycles & All forecasts`	`438.8 Mbytes`	`2009-08-06T02:18:56Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2009-04-21 All Cycles & All forecasts`	`475.5 Mbytes`	`2009-08-06T02:12:47Z`
`SRRS GRIB: National Convective Weather Forecast : 2009-04-21 : All Times`	`287.9 Mbytes`	`2009-08-06T02:05:23Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2009-04-21 All Cycles / All Vertical Levels / Analysis`	`292.3 Mbytes`	`2009-08-06T02:04:56Z`
`SRRS GRIB: 40 Km U.S. Current Icing Potential : 2009-04-21 All Cycles / All Vertical Levels / Analysis`	`74.33 Mbytes`	`2009-08-06T02:04:44Z`
`SRRS GRIB: N.AM 500 mb Heights Analysis : 2009-04-21 All Cycles & Analysis`	`121.2 Kbytes`	`2009-08-06T02:04:31Z`
`SRRS GRIB: N.AM 1000 mb Heights Analysis : 2009-04-21 All Cycles & Analysis`	`135.2 Kbytes`	`2009-08-06T02:04:25Z`
`SRRS GRIB: N.AM Precipitable Water : 2009-04-21 All Cycles & Analysis`	`72.36 Kbytes`	`2009-08-06T02:04:19Z`
`SRRS GRIB: N.AM 700MB Mean Relative Humidity : 2009-04-21 All Cycles & Analysis`	`51.4 Kbytes`	`2009-08-06T02:04:08Z`