How longer term weather forecasts could become more accurate - thanks to the cloud
- The Met Office transitioned to a new off-site supercomputer using Microsoft's cloud-based Azure system on May 2025-05-20, replacing its previous on-site supercomputer.
- This transition involved running the new system alongside the old one for over a month to maintain continuous operation, as making such a significant switch without interruption is extremely challenging.
- The new supercomputer increases computational capacity, enabling multiple model runs with slightly different parameters and faster, smoother climate and weather simulations.
- The Met Office stated the system handles 200 to 300 terabytes daily and could improve 14-day forecast accuracy to the level of current seven-day forecasts while supporting better extreme weather prediction.
- This upgrade allows the Met Office to advance climate research and start new projects without building infrastructure, enhancing confidence in longer-term climate projections globally.
13 Articles
13 Articles

Weather Extreme: How Good Are Long-Term Forecasts Really?
Is a warm summer coming? Maybe. Will it get extremely dry? Probably. Is that safe? No. Weather forecasts often seem impressive – and can turn out to be quite different.First forecasts for the summer of 2025 point to extreme weather conditions – and at the same time add to worries about drought and heat waves.But how reliable are such long-term forecasts at all?A fact check.ConclusionGermany is once again facing a hot and dry summer with drought …
Better forecasts ahead as Met Office transitions to a supercomputer in Azure cloud - Source EMEA
Britain’s national weather and climate service and one of its most trusted institutions— is stepping into the future with high-performance computing in Azure, as well as a host of AI applications. In partnership with Microsoft, the Met Office can now do its forecasting and research with greater safety and resiliency. It’s a scalable platform that they can build the future of their scientific research and customer delivery on.
How longer term weather forecasts could become more accurate thanks to the cloud
The Met Office's new Azure-based supercomputer aims to enhance 14-day forecast accuracy to levels comparable with current seven-day forecasts. WTX News WTX News - WTX News Breaking News, fashion & Culture from around the World - Daily News Briefings -Finance, Business, Politics & Sports News
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