Cyclone Nargis though after beginning a steady eastward motion, Nargis rapidly intensified to attain peak winds of at least 165 km/h (105 mph) on 2 May, according to IMD observations; the JTWC assessed peak winds of 215 km/h (130 mph), making it a weak Category 4 cyclone on the SSHS. The cyclone moved ashore in the Ayeyarwady Division of Myanmar at peak intensity and, after passing near the major city of Yangon (Rangoon), the storm gradually weakened until dissipating near the border of Myanmar and Thailand. Nargis is the deadliest named cyclone in the North Indian Ocean Basin, as well as the
2008–09 South-West Indian Ocean cyclone season 2008–09 South-West Indian Ocean cyclone season The 2008–09 South-West Indian Ocean cyclone season was a slightly above average event in tropical cyclone formation. It began on November 15, 2008, and officially ended on April 30, 2009, with the exception for Mauritius and the Seychelles, for which it ended on May 15, 2009. These dates conventionally delimit the period of each year when most tropical cyclones form in the basin, which is west of 90°E and south of the Equator. Tropical cyclones in this basin were monitored by the Regional Specialised Meteorological Centre in Réunion. As predicted by the sub regional