FARGO — About 98% of all tornadoes spin cyclonically, which in the Northern Hemisphere is counter-clockwise and clockwise in the Southern Hemisphere. This is because tornadoes tend to follow the ...
As explained by the NWS/NOAA, the Fujiwhara effect occurs when two hurricanes spinning in the same direction (counterclockwise for the Northern Hemisphere) get close enough together, they begin to ...