No, this all started by trying to explain that Florida is not considered "Continental Climate" and was explaining the Oceans influence on his weather, but not in Minnesota. Getting a cold front from the North doesn't qualify as being in the same climate system. Even the Great Lakes create there own weather system.I think Woody is asking "Why are there only 2 warm ocean currents in the Northern Hemispahere and 3 in the Southern Hemisphere"?
Woody, notice that all the circulatioins are in the same direction in relation to the rotation of the Earth, anticyclonic; they are called gyres.
Now notice that there are 2 main land masses in the Northern Hemisphere (North America, Africa/Europe/Asia), and 3 in the Southern Hemisphere (South America, Africa, Australia).
You now have the answer to your question.