Hello fellow captains~
So here are some ideas for possible weather events in-game...
A volcanic eruption in some maps that could have volcanoes in them. It's the same as a cyclone event—only this time it's a volcano. The eruption would bring ash-fall across the map, limiting visibility just like a cyclone would. Clouds of ash and debris could also erupt from the volcanic island, creating a natural smokescreen over a large radius. Now the obvious problem would be the toll on the PC with this level tho.
Another idea regarding weather events is the effect of cyclone (rain) on the speed of fire extinguishing in burning ships. It's only natural i guess for a burning ship to douse the flames more quickly when it's raining.
And that's about it.