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What is Fujiwhara Effect?
The Fujiwhara Effect is an natural phenomenon that two adjacent hurricanes or typhoon interact within a distance of 1,000 to 1,200 kilometer affecting each other's path or speed. The Fujiwhara Effect was first described by a Japanese meteorologist, Dr. Sakuhei Fujiwhara(藤原咲平,1884~1950) in 1921, which is named after him.
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What Happens if Fujiwhara Effect Occur?
During the Fujiwhara interaction, the centers of the two hurricanes involved in the phenomenon begin to mutually orbit in a counterclockwise direction about a point between the two hurricanes or cyclonic vortices. The position of the point is dependent on the intensity and relative mass of the cyclonic vortices. The smaller hurricane involved in the Fujiwhara Effect moves at a faster rate than the bigger one about the central point. Also Fujiwhara Effect might lead the two hurricanes to spiral into the central point and merge with each other, or it might trigger the development of a larger cyclone. The effect might also divert the original path of one or both the hurricanes
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Hurricanes Madeline (left) and Lester (right), as captured by the Visible Infrared Imaging Radiometer Suite (VIIRS) aboard the Suomi NPP spacecraft on Monday, August 29, 2016. Image credit: NASA.
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