Blog from March, 2024

The infrastructure provider of the EUMETSAT side of the EWC announced an upcoming scheduled maintenance window that will be taking place on 04 April 2024 between 10:00 and 14:00 CEST, where they will be updating some network switches to improve stability. 

Fortunately machines connected to these switches can and will be migrated prior to the maintenance, therefore no impact is expected on any services or VMs.  We're informing you just for awareness/transparency, and to simplify any debugging in the event of an unexpected issue.

In case of any questions or comments, please contact us via the support ( or via Rocket.

Start: 23/04/2024 08:00
End: 23/04/2024 09:00

The European Weather Cloud (EWC) teams at ECMWF and EUMETSAT are pleased to invite you to the second thematic EWC webinar of 2024.

These recurring thematic webinars are aimed at new or prospective users of the EWC service which is available to all ECMWF and EUMETSAT Member and Co-operating States. Our primary objective is to provide guidance to users on how to effectively use the different capabilities of the EWC.

While the previous introductory webinars focused on the basics to get you started (you can find more information, including the video recordings, here and here), in this series we explore various aspects of cloud utilization through examples, with a specific emphasis on key functionalities and cloud skills.

This upcoming webinar will take place on 23 April 2024 at 8:00 UTC, and will be about Using Jupyter on the EWC to interact with ECMWF datasets. If you would like to attend, we kindly ask you to register here. We will alert you of your acceptance to the webinar and send you all the joining information and Microsoft Teams meeting details in due course.

Throughout this webinar, we will guide you through the step-by-step process of spinning up your personalized Jupyter instance on the cloud including the provisioning of the virtual infrastructure required, as well as how to automate the deployment of the necessary software stack with ansible and git.

Once our Jupyter platform is up and running, we will explore various examples illustrating how to work with ECMWF datasets. From downloading and processing data to visualizing insights in an interactive manner, this webinar aims to equip you with additional tools and knowledge needed to leverage the power of the European Weather Cloud to access your favorite weather and climate datasets.

By the end of this 1-hour session, participants will have learnt about how to automate the provisioning of a cloud service such as Jupyter as well as familiarized themselves with different tools to access the ECMWF Data Services portfolio.

Dear all,

EUMETSAT's EWC infrastructure has a maintenance window planned on 25th March 2024 between 20:00 and 00:00 CET to upgrade NVIDIA GPU drivers and licenses.

VMs with GPUs plans (vm.a6000.x) will be restarted during the maintenance. We recommend our users with active processing/services running on the VMs to gracefully stop their active workloads on the VMs before the maintenance. The deployed VMs will remain unchanged (i.e. CUDA and NVIDIA driver versions will remain the same).

We apologize for any inconvenience this may cause and as always in case of any questions or comments or issues, please contact us via support ( or via Rocket.

Thank you for your patience and understanding.

Dear EWC users!

We are pleased to announce that EWC users can now provision Rocky linux 9 at both ECMWF and EUMETSAT side of the cloud.

Ubuntu 22 and Rocky 8 have been also updated, so when you deploy new images with these layouts, you will get latest updates pre-applied.

As always, if you need any support, please do get in touch with us on rocketchat or through the European Weather Cloud Support Portal.

Kind regards,

EWC Team