Ahead of an emergency system session on Monday 20 July 2026 affecting the underlaying infrastructure, the Data Stores services (CDS, ADS, EWDS, ECDS) will stop accepting new requests from 7am UTC until the system session ends, currently scheduled to end by 11am UTC. Queues will be closed and will reopen again after the system session ends. The Forum will also be unavailable during the system session.
Please refer to the ECMWF Services Status page for latest updates. We will confirm in this Forum topic when the Data Stores will be fully operational again.
We apologise for the inconvenience this may cause and we thank you for your patience.
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ECMWF Support
on behalf of Data Stores Service