Under the influence of an upper air cyclonic circulation, a low pressure area formed over Andaman Sea on October 6.[20] The system drifted westward and intensified into a depression and subsequently into a deep depression the next day, followed by the Joint Typhoon Warning Center (JTWC) issuing a Troipical cyclone formation alert (TCFA).[21] Owing to favorable environmental conditions, the storm intensified into a cyclonic storm on October 8 and was named Hudhud.[22][23] Its convection consolidated in the following hours, and Hudhud became a Severe Cyclonic Storm on October 9. Hudhud underwent rapid deepening in the following days, intensified into a Very severe cyclonic storm and developed a well-defined eye feature. Shortly before landfall near Visakhapatnam, Andhra Pradesh on October 12, Hudhud reached its peak strength with three minute wind speeds of 175 km/h (109 mph) and a minimum central pressure of 960 hPa (28.35 inHg).[24] The system drifted northwards over land and was last noted as a well-marked low pressure area over east Uttar Pradesh on October 14.[25] Hudhud brought extensive damage to the coastal districts of Andhra Pradesh. At least 84 deaths were reported due to the storm, and the damage cost was amounted to $9.7 billion, making Hudhud the first storm in the basin to cause at least $9 billion in damage since Nargis in 2008.
#Chennai - Rainfall till 8:30am, 18-Oct... Nungambakkam - 161.9 mm Airport - 115.3 mm 12:30am, A Heavy rain wave is sweeping along central, N Tamilnadu coast... Rain seen upto S subrubs of Chennai... http://ow.ly/i/7gJXQ
Analysis show that low,mid-level circulation persist over S-W Bay along Srilanka ... http://ow.ly/i/7gJjm This S-W Bay circulation is expected to drift into Gulf Mannar on Monday ... http://ow.ly/i/7gJlO This circulation is currently giving good rain along Interior, S, coastal Tamilnadu, Chennai. And More rain ahead for next 2 days ! During next 24hrs the upper-level circulation is expected to be along S-E Tamilnadu coast ... http://ow.ly/i/7gJqx Monday, GFS expects another circulation over S Bay and move West ... more rain ahead for Tamilnadu till Diwali ! http://ow.ly/i/7gJuG
In next 10hrs... More heavy rain for entire Tamilnadu coast, Chennai ... http://ow.ly/i/7gJwN Due to S-W Bay circulation... Chennai, entire Tamilnadu coast can expect a SUPER sunday..! Heavy intermittent showers expected ALL thru day. 19-Oct, afternoon, evening... HEAVY scattered rain for W-ghats, many zones of Tamilnadu and into W-ghats Kerala. For Tamilnadu coast, Chennai.. intermittent sharp showers, drizzle expected to persist upto Monday morning !! Sunday, afternoon... scattered T showers expected to pop over S,S-W,W-ghats Karnataka and even along S,W w-ghats of Maharastra.