Typhoon Melor (2009)
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Typhoon Melor, known in the Philippines as Typhoon Quedan, was a powerful typhoon that hit Japan in early October 2009, causing significant damage. As part of the 2009 Pacific typhoon season, Melor fo
Melor prior to peak intensity on October 4
Typhoon Melor fujiwara with tropical storm Parma
Typhoon Melor near the Mariana Islands on October 3
Typhoon Melor approaching Japan on October 7
Fujiwhara effect
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The Fujiwhara effect, sometimes referred to as the Fujiwhara interaction or binary interaction, is a phenomenon that occurs when two nearby cyclonic vortices move around each other and close the dista
Typhoon Melor (2009)
…Subsequently, on October 4, Melor became the second Category 5-equivalent super typhoon to form in the season. During the next days, the typhoon would interact with Typhoon Parma southeast of Taiwan, causing Parma to be almost stationary over northern Luzon and drop near-records of rainfall there. Afterwards…
Hurricanes Imelda (left) and Humberto (right) displaying the Fujiwhara effect during the 2025 Atlantic hurricane season.
Sakuhei Fujiwhara, the meteorologist who discovered the phenomenon.