dataset · USA
NOAA North American Mesoscale Forecast System (NAM)
#### Update Effective October 14, 2026, the NAM will be replaced by the Rapid Refresh Forecast System (RRFS). A full list of the models and products being retired can be found in the following [Service Change Notice](https://www.weather.gov/media/notification/pdf_2026/SCN26-47_Updated_Retire_NAM_SREF_HREF_HiresW_NAM_MOS.aab.pdf). The retirement of NAM and the production implementation of RRFS and the RRFS Ensemble Forecast System (REFS) will occur on the same day. <br/><br/> Production files of
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Licence: NOAA data disseminated through NODD are open to the public and can be used as desired. <br/> <br/> NOAA makes data openly available to ensure maximum use of our data, and to spur and encourage explora
Evidence quality: 27
Listed in aws-odr public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
Evidence
- arn:aws:s3:::noaa-nam-pds, arn:aws:sns:us-east-1:123901341784:NewNCEPNAMObject
- https://registry.opendata.aws/noaa-nam/
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.