Avoid convoy, continue to patrol area *
I voted this way because there was no option to "AVOID CONVOY AND CONTINUE TO PATROL CAUTIOUSLY"
I try to play this game as realistically as possiable and I dont think risking your crew (ZERO VISIBILITY) would be a good idea or very realistic.
Infact maybe diving down to 60meters and putting some CCR on the gramaphone while sipping on some suds untill the weather improves a bit would be a better plan . Yep