I think he misunderstood your question, seems game related to me, not about you weather at home...
Overall, the weather in stock and mods looks about the same, cept mods look much better graphically and change colors. The waves are about the same.
Only issue I don't like in game is you can't match wind to storms, so you can get 15 meter winds on a sunny blue day. Guess it can happen, but I wish we could attached the high wind value to storms only.
I don't play anymore, but for more realistic storms I adjusted the darkness and colors in env, added more intense weather sound files and increased waves. They're numerous ways to increase waves or how they look, from larger swells to more crashing waves. Only problem is, in high winds you're often put submerged and ships can become damaged, more so in port. That's fine in storms, cool to see convoys struggling in the waves, becoming damaged, smaller ships even sinking...
Don't play anymore, but this was about the largest wave, more of a swell that I used and didn't seem to destroy everything.