Nice WOW effect, but i voted NO.
We had battles in storm, they were pretty boring because killing someone is not really possible.
90 minutes of sailing around, getting lost, shooting waves, there is a reason why it was taken out.
Historically i would say no navy would have attacked a harbour in a storm.....
Default win for the defender - attacker will not be able to generate points, neither by kills nor forts bombardement.
Erm, just seen that no big waves are possible, in that case, ignore the above.