Weather forecasting models work on more or less a historic basis- past weather scenarios that current conditions in the atmosphere are thought to mimic.
With the general warming of the Earth's atmosphere- I'm of the strong opinion that this will change established weather patterns- therefore throwing out many of these weather models' effectiveness.
This is too simple: a NEW climate model simply makes the present established weather model- based on past- observed historical weather patterns- obsolete.
A good example might be the present weather models. They have been bouncing all over the place the past 5 days on whether this present frontal system coming through "cuts-off" or not.
One day- the models cut this system off with an upper-level low meandering around the Central States for several days- the next day it doesn't cut it off.
This is just one example of what may well make weather forecasting in the coming years more difficult.
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