List of tropical cyclones near the Equator

This is a list of all tropical cyclones that have existed between 3.0°N and 3.0°S, or within 180 nautical miles (210 mi; 330 km) of the equator. Despite the presence of sufficiently warm sea surface temperatures and generally low wind shear, tropical cyclogenesis is very rare in these latitudes, particularly outside of the northwestern Pacific Ocean. Outside of the northwestern Pacific, only four tropical cyclones have formed in this region; two in the northeastern Pacific, albeit both systems formed close to the boundary of the northwestern Pacific, Cyclone Agni, which formed in the north Indian Ocean, and Cyclone Fabien which formed in the south-west Indian Ocean. The lack of storm formations in close proximity to the equator is due to a weak Coriolis effect in the region. The Coriolis effect provides the dynamics required for the rotation of thunderstorms in developing tropical cyclones and without it, most tropical cyclones can't develop due to a lack of vorticity.[1][2] Overall, only twelve systems have formed in these latitudes since records began. The most recent of these systems was Cyclone Fabien in May of 2023.

Tropical Storm Vamei near the equator in December 2001

See also

References

  1. "Tropical Cyclone Introduction". National Weather Service. Retrieved 23 April 2023.
  2. Chun-yuen, Chau. "Why do Tropical Cyclones always Form more than 5 degrees of Latitude away from the Equator?". Hong Kong Observatory. Retrieved 23 April 2023.
  3. "1956 01W:SARAH (1956081N02154)". The International Best Track Archive for Climate Stewardship (IBTrACS). Retrieved 19 May 2017.
  4. "1959 HARRIET (1959356N05152)". The International Best Track Archive for Climate Stewardship (IBTrACS). Retrieved 19 May 2017.
  5. "1972 02W:TD02 (1972090N05154)". The International Best Track Archive for Climate Stewardship (IBTrACS). Retrieved 19 May 2017.
  6. "1977 PATSY (1977082N03165)". The International Best Track Archive for Climate Stewardship (IBTrACS). Retrieved 19 May 2017.
  7. "1979 ALICE (1978361N02180)". The International Best Track Archive for Climate Stewardship (IBTrACS). Retrieved 19 May 2017.
  8. "2001 VAMEI (2001361N01106)". The International Best Track Archive for Climate Stewardship (IBTrACS). Retrieved 19 May 2017.
  9. Report on Cyclonic Disturbances Over North Indian Ocean During 2004 (PDF) (Report). India Meteorological Department. January 2005. Retrieved 2015-05-24.
  10. "2014 PEIPAH (2014093N02148)". The International Best Track Archive for Climate Stewardship (IBTrACS). Retrieved 19 May 2017.
  11. Houston, Sam. "Tropical Depression Nine-C Advisory Number 6". Central Pacific Hurricane Center. Central Pacific Hurricane Center. Retrieved 19 May 2017.
  12. "TROPICAL CYCLONE REPORT - HURRICANE PALI" (PDF). Central Pacific Hurricane Center. 13 December 2018. Archived from the original (PDF) on 26 January 2019. Retrieved 26 January 2019.
  13. "WWJP27 RJTD 040600". Japan Meteorological Agency. 4 March 2023. Archived from the original on 4 March 2023. Retrieved 4 March 2023.
  14. Tropical Disturbance 10 Warning Number (01/10/20222023) (PDF) (Report). Météo-France. 13 May 2023. Archived (PDF) from the original on 13 May 2023. Retrieved 13 May 2023.
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