The air flow is not the same at all levels and can be very different in strength and direction when associated with vigorous weather systems...

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AIFS ENS: a deep learning-based system developed by ECMWF. It is initialised with ECMWF perturbed forecasts and operates at N320 (~0.25Deg) resolution

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AIFS ENS: a deep learning-based system developed by ECMWF. It is initialised with ECMWF perturbed forecasts and operates at N320 (~0.25Deg) resolution

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open_in_newview in Open Charts

The ECMWF seasonal forecasts (SEAS5) are produced every month with a 51-member ensemble at a ...

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In the northern hemisphere the air rotates anti-clockwise around low contour centres and clockwise around the high contour centres. In the southern hemisphere the air rotates clockwise around low contour centres and ...

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These charts show the mean and variation in the latest ECMWF ensemble forecast (ENS). ...

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open_in_newview in Open Charts

These charts show the mean and variation in the latest ECMWF ensemble forecast (ENS). ...

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open_in_newview in Open Charts

These charts show the mean and variation in the latest ECMWF ensemble forecast (ENS). ...

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These diagrams aim to show the time evolution of regimes which are indicative of the likely weather in and around Europe.The winds across the Atlantic can usefully be classified into four regimes ...

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These plots compare recent IFS and experimental AIFS verification scores for 500 hPa ...

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open_in_newview in Open Charts

These plots compare recent IFS and experimental AIFS verification scores for 500 hPa ...

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This diagram gives a measure of the effectiveness of the model in forecasting 500 hPa heights at ...

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These diagrams compare scores of ensemble control (red) and ensemble members (central 50% of ...

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This is a time/longitude diagram (Hovmoller diagram) of 500 hPa or 1000 hPa mean height anomaly ...

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These diagrams show the evolution of regimes indicative of likely weather by week around ...

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This diagram shows the variation of Relative Operating Characteristics (ROC) scores with various ...

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This diagram gives a measure of the effectiveness of the model. The drop-down menu can ...

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This chart shows 7-day mean anomalies for a range of parameters from the ECMWF Sub-seasonal ...

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**Note:** In **June 2023** ECMWF implemented a **major upgrade ...**

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GraphCast (Google DeepMind): a deep learning-based system developed by Google DeepMind.It is initialised with ECMWF analysis. GraphCast operates at 0.25° resolution.

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GraphCast (Google DeepMind): a deep learning-based system developed by Google DeepMind.It is initialised with ECMWF analysis. GraphCast operates at 0.25° resolution.

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Pangu-Weather: a deep learning-based system developed by Huawei. It is initialised with ECMWF analysis. Pangu-Weather operates at 0.25° resolution.

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open_in_newview in Open Charts

Pangu-Weather: a deep learning-based system developed by Huawei. It is initialised with ECMWF analysis. Pangu-Weather operates at 0.25° resolution.

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open_in_newview in Open Charts

Pangu-Weather: a deep learning-based system developed by Huawei. It is initialised with ECMWF analysis. Pangu-Weather operates at 0.25° resolution.

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open_in_newview in Open Charts

This diagram shows daily probabilities for four types of Euro-Atlantic weather regimes over ...

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open_in_newview in Open Charts