http://www.cycloneoi.com/archives-blog/cyclone/future-tempete-tropicaleirondro-en-gestation-au-sud-de-diego-garcia.html

Cyclogenesis is underway in the southwestern Indian Ocean basin from Suspect Zone 91S, the centre of which is located south of Diego Garcia. Associated convective activity is strong, while environmental conditions are favorable for development over the next 36 to 48 hours.