NOAA Global Forecast System (GFS)

A rolling four-week archive of 0.25 degree GFS data is available in s3://noaa-gfs-pds.

Browse the data in your browser at

File Structure

The key layout of data in the buckets is:

Parameter/Vertical Level/YYYYMMDD/HH00/FFF

FFF represents the forecast hour.

File Format

The files are in GRIB format. Within each GRIB file are Climate and Forecast v1.6 metedata that describes the data contained.

SNS Topic

This Amazon SNS topic publishes a notification for every new object added to the Amazon S3 GFS chunks on AWS. You can subscribe to this Amazon SNS topic using Amazon SQS and AWS Lambda.


Further Documentation

There is a general introdcution to GFS at