What is the Fujiwhara Effect?

Two cyclonic storms may form in the Bay of Bengal in the coming week. Meteorologists have flagged a possible Fujiwhara interaction between the storms. This raises uncertainty about the storm track, intensity, and impact, putting a large population in South and Southeast Asia on alert.

What is the Fujiwhara Effect?

• Named after Japanese meteorologist Sakuhei Fujiwhara, the effect occurs when two cyclonic storms form in close proximity.
• Their wind circulations interact in the middle to upper atmosphere, creating a mutual influence.

Implications of the Interaction

• The storms may:
  • Influence each other’s path
  • Alter wind speeds and intensity
  • Potentially merge, strengthen, weaken, or dissipate
• The dynamics are complex, making it challenging for weather models to predict precise outcomes.

Precautionary Note

• Residents of potentially affected areas are advised to stay updated with meteorological forecasts and follow local safety advisories.

Source: DTE