Meteorological phenomenon involving two cyclones circling each other
Typhoon Parma (left) and Melor (right) interacting with each other in the Philippine Sea on October 6, 2009.
The Fujiwhara effect, sometimes referred to as the Fujiwara effect, Fujiw(h)ara interaction or binary interaction, is a phenomenon that occurs when two nearby cyclonic vortices move around each other and close the distance between the circulations of their corresponding low-pressure areas. The effect is named after Sakuhei Fujiwhara, the Japanese meteorologist who initially described the effect. Binary interaction of smaller circulations can cause the development of a larger cyclone, or cause two cyclones to merge into one. Extratropical cyclones typically engage in binary interaction when within 2,000 kilometres (1,200 mi) of one another, while tropical cyclones typically interact within 1,400 kilometres (870 mi) of each other.
The Fujiwharaeffect, sometimes referred to as the Fujiwara effect, Fujiw(h)ara interaction or binary interaction, is a phenomenon that occurs when two...
Sakuhei Fujiwhara (藤原 咲平, Fujiwara Sakuhei, October 29, 1884 – September 22, 1950) was a Japanese meteorologist who became the namesake for the Fujiwhara effect...
are the higher-latitude westerlies, the subtropical ridge, and the beta effect caused by changes of the coriolis force within fluids such as the atmosphere...
world until the development of the Enhanced Fujita scale. Fujiwharaeffect The Fujiwharaeffect is an atmospheric phenomenon where two nearby cyclonic vortices...
vortex will orbit around it. This phenomenon is called the Fujiwharaeffect, after Sakuhei Fujiwhara. Though a tropical cyclone typically moves from east to...
capital of Japan, corresponding to modern-day Kashihara, Nara The Fujiwharaeffect (in weather) Yiengpruksawan, Mimi Hall (1994). "What's in a Name? Fujiwara...
School in Suwa where he was classmates with Sakuhei Fujiwhara, the namesake of the Fujiwharaeffect. In 1895, Nagata transferred to an elementary school...
weaken as Seroja moved closer to it, due to a phenomenon known as the Fujiwharaeffect. Eventually, Seroja began to restrengthen and weaken Odette, with Seroja...
results from the temperature contrast between warm and cold air masses. Fujiwharaeffect The tendency of two nearby tropical cyclones to rotate cyclonically...
vortices of the two cyclones rotate around each other (known as the "Fujiwharaeffect"). This most often results in a merging of the two low pressure systems...
Joyce interacted with the larger Hurricane Helene, due to the Fujiwharaeffect, with Joyce being steered counter-clockwise around Helene. At 00:00 UTC...
Tornadoes portal List of tornadoes with confirmed satellite tornadoes Fujiwharaeffect Multiple-vortex tornado This includes any fatalities from the parent...
with tropical storm Namtheun. Early on September 1, Lionrock made a Fujiwharaeffect with Namtheun, while Lionrock maintained its strength while Namtheun...
in 2006. While near peak intensity, Typhoon Fengshen underwent the Fujiwharaeffect with Fung-wong, causing the latter storm to loop to its south. Fengshen...
vorticity field which can repel other cyclones (see Fujiwharaeffect) similar to the beta-effect. The latitude where the circumpolar cyclones are positioned...
September. This pressure system tracked south eastwards, experiencing the Fujiwharaeffect and then undergoing explosive cyclogenesis before making landfall in...
mesocyclone with several circulations rotating around each other due to the Fujiwharaeffect. These circulations produced multiple erratically moving strong tornadoes...
an unusual hybrid of Hurricane Sandy and a winter storm producing a Fujiwharaeffect. Government weather forecasters said there was a 90% chance that the...
inland remnants of Typhoon Bilis, which was pulled south due to the Fujiwharaeffect between Typhoon Prapiroon. The low pressure area entered the South...
Japan. Jongdari began to be inundated by subsidence on July 28 as the Fujiwharaeffect had made the upper-level low move to the west of the typhoon. It also...
It interacted with another depression to the north, exhibiting the Fujiwharaeffect. On August 18, the depression also known as Maring strengthened into...
cooler waters and drier air. Hurricane forecast models anticipated a Fujiwharaeffect, or an orbiting of two tropical cyclones, which would eventually result...
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