Trouble harbor raiding

[treblesum81]

Hi all, I'm pretty new here, so if this is a topic that has been dealt with before, please point me to that thread, though I spent some time searching for it and haven't been able to find the specific issue I'm having. I've recently started trying to do some harbor raiding, which would be fun except that every time I spend the several hours (game time, but still quite a while even with TC) to get myself into the port, most of the larger ships are already either sinking or already sunk. I've experienced nothing but heavy to severe sea states over the last few attempts so that might have something to do with it, but whatever the case, I really end up just wasting 2-3 hours of my time trying to get to ships that I can't sink anymore anyway. Does anyone have any advice on how to stop this? I'm using GWX 2.1 with SH3 Commander (which I have the seasonal waves option set, so that may be the case as its winter of 1939 currently). I'd just like to be able to sneak into a harbor and know that I'll at least get the satisfaction of sinking something worthwhile. Thanks, Greg