The UK snow charts are updated every 6 hours and are available in 3 hour steps. These are generated using the high resolution GFS deterministic forecasting model.
The UK ensemble postage stamp' charts are updated every 6 hours and are available in 6 hour steps. These are generated using the high resolution GEFS forecasting model.
Each image shows the output from one of the 22 GEFS runs. This includes the control run and the mean.
The fax charts are produced by the UK Met Office several times each day and show Mean Surface Level Pressure (MSLP), fronts, low and high pressure centres etc.
They are based on computer model output but modified by human forecasters if necessary and go out to 120 hours ahead.
As well as these the TWO chart viewer provides a huge range of charts from many different computer models.
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