AS2004 and Wetter 2004 (or similar)?

I understand that AS2004's main purpose is to work with real time weather, whether is's used on- or offline.I, for my part, would sometimes like to create random weather for some area like the program "Wetter 2004" does, but at the same time, i't like to get all the benefits AS2004 incorporates.My question now is if it's possible to generate weather and then use AS2004 to fly within it without having AS2004 generating new weather by itself and thus kind of overwriting the previous one?Andreas