Knowledge Base and User Forum potentially unavailable on 07-Dec-2021 from 12:00 UTC to 14:00 UTC

On Tuesday 7th December 2021, due to a system session to upgrade Confluence, there will be a short at-risk period from 12:00 UTC to 14:00 UTC during which the Copernicus Knowledge Base and the User Support Forum (both Confluence based) may be unavailable for some short periods of time.

To monitor progress of this particular WEB-SERVICES session, please check the ECMWF systems status page at

We apologise for the inconvenience this disruption may cause.

ECMWF Support