yes i just ran a couple of campaign missions with cluds and cloudran set to 1 instead of 0...nothing brainstaggeringly interesting happenned (if anything at all

)
best part about the weather system seems to be as you so rightly say the wind speed and direction which actually has a huge impact on the game..ships and the sub travelling into a high wind will really struggle as it whips the waves up against the direction of travel..and keep an eye on your rudder settings if you travel crosswing on a set course...it will be set to port or strarboard in order to correct any drift...and that is very interesting and a wonderfully realistic and satisfying touch...
but other than that the way it just pours out of the warp hole above the sub moving along with you is well..pants..at least as far as the immersion factor goes....much more satisfying for it to follow the same pattern as the really advanced SH2 weather stuff ie the seperate independant and dynamically moving fronts...those you could place in missions and have them move across the map allmost like convoys (even set up radio messages that accurately predict their arrival and passing etc!) fascinating stuff
but with SH3 i'm not sure there's much more that can be made of it as long as it's 100% tied to the player sub position..shame lol as we have got independantly moving iceburgs and even an ENV section for the game !!!
lots of eye candy stuff can be done (and has) but other than finding that list and editing it ..the weather is allways going to be a little bit "Coronation street" when it shuld perhaps be a bit more "Life on earth" if you see what i mean ! no real depth
i'd love to see more rain in fact i had resigned myself to the fact that the rain was broken untill a couple of days ago lol...after 40 or more patrols in the atlantic and med and up around norway etc it finally rained!!
ill check out that folder see if there's any hope of a quick mod