Catalog https://www.ncei.noaa.gov/thredds/catalog/model-srrs-grib/201812/20181221/catalog.html

Dataset	Size	Last Modified
`20181221`		`--`
`SRRS GRIB: 8 hour 3X Ozone Concentration : 2018-12-21 All Cycles & All forecasts`	`4.480 Gbytes`	`2019-02-12T08:03:53.113Z`
`SRRS GRIB: 1 hour 3X Ozone Concentration : 2018-12-21 All Cycles & All forecasts`	`333.9 Mbytes`	`2019-02-12T07:47:43.981Z`
`SRRS GRIB: 8 hour 5X Ozone Concentration : 2018-12-21 All Cycles & All forecasts`	`3.959 Gbytes`	`2019-02-12T07:46:19.579Z`
`SRRS GRIB: 1 hour 5X Ozone Concentration : 2018-12-21 All Cycles & All forecasts`	`3.825 Gbytes`	`2019-02-12T07:31:14.918Z`
`SRRS GRIB: Smoke : 2018-12-21 All Cycles & All forecasts`	`4.750 Gbytes`	`2019-02-12T07:16:48.825Z`
`SRRS GRIB: 20 Km U.S. Current Icing Potential : 2018-12-21 All Cycles / All Vertical Levels / Analysis`	`1.620 Gbytes`	`2019-02-12T06:09:09.423Z`