The charts show the evolution of existing and potential tropical cyclone activity. ...

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These charts aim to point towards areas where anomalous weather is likely to occur. ...

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These diagrams show verification scores for significant wave height and 10 m wind for three ...

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These charts show the the wave energy flux (in kW m⁻¹) calculated as the integral, over all forecast wave frequencies and wave directions, of the product of the wave group speed and the two-dimensional energy wave spectrum...

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Wind speed at 200 hPa highlights the jet stream (areas of strong winds in the upper troposphere) which can help identify movement and development of depressions...

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Wind speeds near the surface are roughly proportional to the distance between isobars so closely packed isobars mean strong surface winds...

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Precipitation totals include all precipitation types (rain, snow etc.) (in mm of rainfall or rainfall equivalent) falling in 6 hour or 12 hour periods using colour shading...

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This display helps with the recognition of clouds of different layers, even when they overlap. Brighter colouring represents greater cloud cover. Cloud-free areas appear white while areas of full cloud cover at all levels appear dark grey (e.g. active fronts)...

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These charts show areas where anomalous significant wave heights are likely to occur. These charts are based on the ECMWF ense ...

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Ensemble Mean Sea Level Pressure (MSLP) is the mean MSLP of the ensemble members (in hPa) and detail is smoothed out. These charts show surface pressure patterns...

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

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This chart shows the probability that both the wind at 10 m above the earth's surface is ...

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

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open_in_newview in Open Charts

This display helps with the recognition of clouds of different layers, even when they overlap. Brighter colouring represents greater cloud cover. Cloud-free areas appear white while areas of full cloud cover at all levels appear dark grey (e.g. active fronts)...

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

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

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This chart provides information on the verification of forecasts of the number of tropical ...

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At any location over the oceans, there is a spectrum of waves which describes how much wave energy is present for given wave frequencies and direction of propagation...

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Significant wave height can be shown to correspond to the average wave height of the top one-third highest waves. The wave period of windsea is generally <10s,...

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These diagrams compare Continuous Ranked Probability Skill Scores (CRPSS) of ECMWF with ...

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open_in_newview in Open Charts