Datasets
This chart shows the anomaly in precipitation (in mm of rainfall or rainfall equivalent) during a 24 hour period immediately prior to the chosen valid date/time...
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This chart shows the anomaly in snowfall (in mm of rainfall equivalent) during a 24 hour period immediately prior to the chosen valid date/time...
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Forecast precipitation is considered to be snow if the model atmosphere above and at the ground surface is forecast to be below 0°C. Where the ground surface lies near the 0°C level...
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Mean total swell wave direction is the spectrally averaged propagation direction of the swell waves (weighted by wave height) of the part of the spectrum that is NOT windsea...
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Wave height is the vertical distance between trough and crest. Wave period is the time between the passage of one wave crest and the next. The arrow direction is the direction the waves are moving towards...
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These charts provide information on current Tropical Cyclone activity. Select the ...
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This chart shows the potential for tropical cyclone activity at different time ranges during the ...
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**Note:** In **June 2023** ECMWF implemented a **major upgrade ...**
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**Note:** In **June 2023** ECMWF implemented a **major upgrade ...**
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**Note:** In **June 2023** ECMWF implemented a **major upgrade ...**
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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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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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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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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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The height of topography above mean sea level and the depth of the sea for each model grid box ...
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The reliability diagram shows the reliability of the ECMWF seasonal forecast system (SEAS5) with ...
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This chart shows the Relative Operating Characteristics (ROC) diagram for the three-month ...
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The ECMWF seasonal forecasts (SEAS5) are produced every month with a 51-member ensemble at ...
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MUCAPE (Most Unstable Convective Available Potential Energy) is an indicator of atmospheric instability (the susceptibility of the troposphere to support free convection) and...
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These charts aim to point towards areas where anomalous weather is likely to occur. ...
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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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This chart provides a range of skill scores relating to forecasts of the evolution of the sea ...
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This chart provides a range of skill scores relating to forecasts of the evolution of the sea ...
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**Note:** In **June 2023** ECMWF implemented a **major upgrade ...**
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