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High resolution mean sea level pressure and ensemble spread

High resolution mean sea level pressure and ensemble spread

Base Time: Fri 16 Jan 2026 00 UTC T+96 Valid time: Tue 20 Jan 2026 00 UTC (T+96)

Ensemble forecasts explained
One 'ensemble forecast' consists of 51 separate forecasts made by the same computer model, all activated from the same starting time. The starting conditions for each member of the ensemble are slightly different, and physical parameter values used also differ slightly. The differences between these ensemble members tend to grow as the forecasts progress, that is as the forecast lead time increases.

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In focus

Browse our fact sheets on topics such as Destination Earth and the role of the Copernicus Atmosphere Monitoring Service, and read about some of the opportunities and challenges for ML and weather forecasting.

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