When the patch was released and it said something about the improvements i though VSTEP has like made the wind blowing noise louder so we can hear it, spectacular lightning display and new more realistic sounds,beautifully sunset reflecting on your screen, rain drops on your window (allot or little depending on how much rain is falling), and a bit more realistic rain.
Storm, rain, rough seas and loud wind!
http://www.youtube.com/watch?v=Ow4F8s-ZNvk -SH3 weather, now this would be perfect storm effects for SS08, you can actually feel like you are in a storm.
http://www.youtube.com/watch?v=TiGnCWTPbgA, from the sides on the ship as it speeds on ahead
http://www.youtube.com/watch?v=ztcP0-vUFiU&feature=related, basic rain falling on the window screen, that would lead it to the wind shield wipers to work.
Sunsets, more puffy clouds(dark, white or black).
http://www.youtube.com/watch?v=el2M2TtAjDs&feature=related, notice the reflection.