I didn't make it by any changes in the game, it's just screenshot from a mission
seen it only once, trees hanging high in the air... guess it was some kind of bug but happened only once
BTW only now I noticed that sea state is independant from wind setting, so on the pictures with 2000kts wind you can see calm sea...
You can set very high wind setting which would result in ships being pushed through the water very hard (I learned that over 2000kts can kill the OHP
, but the highest possible sea state setting remains 5 so probably yuu don't get higher waves....
But sea state 5 with high wind setting should emulate hurricane quite well I think.