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Bay of Bengal Cyclone Interaction
December 4 , 2025
16 hrs 0 min
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- Two cyclonic storms are forming in the Bay of Bengal (Indian Ocean).
- The Fujiwhara Effect is when two nearby cyclones rotate around a common centre.
- It happens mostly when storms are within 1,400 kilometres and rotate in the same direction (counter-clockwise in the Northern Hemisphere).
- Interaction can cause the cyclones to merge, intensify, slow down, or change paths.
- Prolonged interaction increases rainfall and flood risk in Tamil Nadu, Andhra Pradesh, Odisha, West Bengal, Sri Lanka, and Myanmar.
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