I like the weather system very much. It give less visibility for all ships, which is ture for the reality. However, I think there is more needs to be done as below:
1. During the rain, the visibility for different type of ships shall be slightly different. For example, bb should have better visibility than dd.
2. The max speed of all ships in the rain shall be reduced.
3. The speed of aircraft should be affected seriously as the rain on the sea usually comes with a storm.
4. I think during the rain it would be better to have a sound of thunder and some flash as well.