[propbeanie]

The weather in the game is on a "timer", and has a given percentage chance of a change at those clock intervals. It might change, it might not. Using the Ctrl-N combo will re-set the clock, nothing more, but it does give another chance of a change once the "time" runs again, which is generally set to a five hour period of time in the game. There is a fine line between a "normal" weather cycle, and a stuck weather cycle, no matter what you do with the game. The weather gets "stuck" in Stock and all mods. The problem with this also is that the weather only goes from 0 (zero) to 15 ms winds, so you never really get into typhoon weather. Most folks don't like to see ships sink in bad weather, which did/does happen in real life, but can happen entirely too often in the game, even with just 15ms winds, so most mods calm the weather down a bit.

As Bubblehead1980 pointed out, Time Compression (TC) can absolutely wreck the weather, as well as a few other aspects of the game. The clock for the weather does not seem to understand TC, or has a bad algorithm for such. The higher you go, the worse it gets. Also, as with all things SH4, shelling-out to Windows can and does cause issues, and like Saving the game, will re-set all "clocks" involved in the gameplay. SH4 uses the DirectX v9 "clock", and as such does not save its "state" with the game, hence a re-set back to zero time when re-loading or re-entering the game. This also messes with repair times on your boat, if you have taken damage.