I saw several weather changes. Once while chatting with a visitor, from dead calm, the wind and waves slowly picked up and clouds moved in (Stock).
Another time, in North Sea (GWX). Light seas. A ship was approaching. Went to PD. As the scope went up, it showed a cloud bank. Within 10 minutes the sea was too choppy yo surface and use the deck gun. I've tried many times to watch weather change, no luck when I try