GFS Data Explorer

Discover, filter, and download GFS data from the NOAA Open Data Dissemination program on AWS S3.

Filter Criteria

Date (UTC)

Cycle Run Time (UTC)

Product Category

Forecast Hour(s)

Enter comma-separated values, ranges (e.g., 6-18), or leave blank for all. Valid values are 0 through 384.

0.25 deg forecasts are run hourly from hour 0 through hour 120, then every 3 hours until hour 384.

0.5 deg and 1.0 deg forecasts are run for every 3 hours from hour 0 until hour 384.

Copy Tools

Generated S3 Path

Results

	Filename	F-Hour	Size

Please select criteria and click "Query GFS Data" to begin.

Working with GRIB2 Data

Downloaded files are in GRIB2 format. This is a standard for meteorological data but requires specialized software for viewing and analysis. Consider using tools like Metview, or Python libraries like Herbie for programmatic access.