This doesn't necessarily show a dichotomy, just snow on a boat...

This theme has produced a lot of controversy. I think that almost each one of the entries could be questioned in one way or the other, because weather happens. Late snow on flowers or chairs , a rainy day, a stormy day, or a frosty morning are not really unusual. Most require explanations to "get" it. The term "dichotomized" means divided or opposed, not unusual. Our normal ability to sail all winter is opposed to the snow storm and I believe illustrates divided weather. By your judgement, only snow on flowers qualifies? Not all that unusual either. The theme is somewhat flawed.