HRRR Archive: Best Practices


Updated August 9, 2017

The HRRR archive is made possible by the resources at Utah's Center For High Performance Computing.

HRRR data is originally downloaded from NOMADS via HTTP and NOAA ESRL via FTP. These original files are quite large (prs files are >380 MB and sfc files are >100 MB each hour!) That means if you download prs analyses for one day that's over 9 GB! Please be conscious of what you download.

This is an unofficial HRRR archive.

We do not guarantee HRRR data will be available for every day or every forecast hour.

We do not provide this HRRR data operationally or in real-time. If you are looking for real-time, operational HRRR data please use NOMADS.

This archive is provided as a friendly service. By using the archive, you agree to the following:

Submitting the registration form directs you to the download URL, which you can bookmark. The information we collect in the registration form is only used internally to keep a count of users and get an idea of what the archive is being used for. We may share the total count and general usage with the folks at NOAA's Earth System Research Lab.

Full disclosure: This archive system has failed in the past. In January 2018, The Pando archive crashed and all the data was unrecoverable. We were able to backfill the data to 15 July 2016. After the failure, we set up an additional backup to prevent total loss in the future. More info

Nothing to worry about in the fine print


Questions? Contact Brian Blaylock