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The re-forecasts are created twice a week (Mondays and Thursdays) and are ready a week before the real-time forecasting suite starts. Real-time forecasts are calibrated using all the re-forecasts available in a one week window centred on the forecast start day and month.
Fig5Fig52.2.1A: Example of plumes for Dublin. Extended Range forecast, DT00UTC 1 January 2018. The plumes show increasing spread of forecasted values of 850hPa temperatures and 500hPa geopotential height within the extended range period.
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