We are please to announce that the seasonal range forecast products from the SEAS5 system will be extended to 13 months once per quarter, with next production in February.
Please note that the extension data (months 8-13) will only be provided in the new ECMWF or WMO file-naming convention templates (see File naming convention and format for real-time data). Data for months 1-7 can be selected using either the new templates or the LEGACY file-naming convention.
These products can also be added with Product Requirements Editor (PREd) snippets for easier configuration.
For any enquiries please use the ECMWF Support portal.
ECMWF Support