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Tropical Cyclone Anais (01S) East of Madagascar

14.3S 53.6E

October 18th, 2012 Category: Tropical Cyclones

Tropical Cyclone Anais (01S) – October 17th, 2012

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Anais (01S) gradually intensified and was upgraded into an intense tropical cyclone by RSMC La RĂ©union early on October 14, while it ws upgraded to a category 3 cyclone by the JTWC, as it started to form an well defined eye.

Late on October 15, as it started to weaken, the system’s eye started to collapse, but deep convection remained over the low level circulation center, and it was downgraded to a category 1 cyclone by October 16.

On October 17, the system weakened into a tropical storm, and the low level circulation center became totally exposed, with convection being displaced to the south due to moderate vertical wind shear from the north west. This marked the earliest formation of an intense tropical cyclone in the South-West Indian Ocean, forming almost a month before the start of the season.

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