Vastly oversimplified map. Go hit weather.com and see which way the NK clouds move. Tropical/equatorial upwelling and the coriolis effect. The westerlies close to Antartica are part of the cycle. There are trade wind directional winds at the North Pole. It is hard to explain without sitting you down in a classroom and having a globe and a blackboard. Just trust me, NK fallout will hit Japan and not the Norks.
Fyi, the huricane position on the map is way too North and way too West. The storm systems that hit the Atlantic and become huricanes form over Saharan Africa. Two arrows down and below Spain.
Woops. Meant to say Chicoms, not Norks.