I’m talking about information displayed on different weather websites. One will say that there’s a very high chance of rain in a place at a certain hour, for multiple hours, and another will say that there will be just some light rain in the first hour, then it will be dry/sunny.
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There are a couple of main models that almost all forecasting sites get their information from. The US model is GFS and the European model is ECMWF.
Some websites will just pass on Unmodified forecasts direct from one or other of these models.
Some websites will combine the data in some way and present a likely average.
Some websites apply local knowledge of particular regions and geography to make more precise localised predictions based on one or both of the models.
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