Computer model forecast accuracy

All forecasts, of whatever type, are ultimately based on the predictions from our suite of sophisticated atmospheric and oceanic models, run on our powerful supercomputer.

This form of forecasting is known as Numerical Weather Prediction (NWP). The accuracy of the Met Office computer model forecasts is measured by the NWP Index.

The NWP Index takes into account computer forecasts for several weather elements, including mean sea level pressure, for regions covering the entire globe from one to five days ahead. The higher the NWP Index, the more accurate the computer forecasts are.