Current predictions show Hurricane Matthew coming back around to hit Florida a second time, but as a much weaker storm. If it maintains hurricane strength when it hits Florida a second time, that would be unprecedented. We've never seen a hurricane do that. There's a remote possibility that it could run into Nicole on the way back around. Nicole is predicted to basically stay in the same place for the next few days. If it combines with Nicole, it'll probably be at least a category 2 when it hits Florida again. If that actually happens, it could have some serious implications. Hurricanes form over warm waters. They're basically the planet takes excess heat in the oceans and redistributes it. Ocean temperatures are rising. That means that there's a lot more of that excess heat that needs to be re-distributed. If we start to see hurricanes come back around and combine with another hurricane that's forming, we might be looking at the formation of a new cycle to re-distribute that heat. We would need to see it more often to confirm that though.