Cyclone Helen (2013)

Map plotting the track and the intensity of the storm, according to the Saffir–Simpson scale

Late on 17 November, the remnant energy of Tropical Storm Podul contributed to the development of a trough over the Bay of Bengal, located near the Andaman Islands. During the next couple of days, the storm slowly organized and consolidated, prompting the Joint Typhoon Warning Center (JTWC) to issue a Tropical cyclone formation alert (TCFA) during the early hours of 19 November.[1] Later on the same day, the India Meteorological Department (IMD) upgraded the storm to a depression, classifying it as BOB 06,[2] followed by the JTWC reporting that the storm had reached Tropical Storm strength.[3] A couple of hours later, the IMD upgraded BOB 06 into a Deep Depression, as the storm continued to intensify.[4]

The storm slowly drifted west-northwestward, while deep convection consolidated around the system's well-defined center of circulation.[5] In the early hours of 20 November, the IMD classified BOB 06 as a Cyclonic Storm, thereby officially naming it Helen.[6] Early on 21 November, Helen continued to intensify into a Severe Cyclonic Storm, reaching its peak intensity of 100 km/h (62 mph) with a central pressure of 990 mbar (29 inHg).

Shortly before landfall, the storm's convection sheared to the north, causing its low level circulation to fully expose followed by the JTWC issuing its final bulletin, reporting that the storm had weakened due to land interaction.[7] Helen made landfall south of Machilipatnam, Andhra Pradesh and rapidly deteriorated into a deep depression.[8][9]

The Andhra Pradesh government alerted all coastal districts of the state, especially southern coastal districts. The district collectors were directed to evacuate people from low-lying areas near the coast.[10] More than 11,000 people were evacuated from the areas affected by the storm. Ten teams of the National Disaster Response Force were deployed for rescue operations in the affected areas. A total of 10 deaths have been reported in incidents related to the cyclone.[11]

Three boats carrying 20 fishermen were reported missing, out of which two were reported to be safe and on their way back to the coast. Efforts are on to ensure the safety of the third. The Coast Guard's vessel Avantibai and an HAL Chetak helicopter of the Navy have been dispatched for search and rescue of the missing fishermen.[12]

Helen brought extensive damage to Machilipatnam in Krishna district, with uprooted trees and electric lines. The districts of Krishna, East Godavari and Srikakulam, Visakhapatnam and Guntur suffered heavy rainfall. Heavy damage to harvest crops was also reported, with the West Godavari district being worst affected. Paddy, coconut and banana crops have suffered damage.[12] The agricultural loss in Andhra Pradesh were amounted to be Rs50 billion (US$796 million).[13]

• Cyclone Viyaru
• Cyclone Maarutha
• Cyclone Bijli
• Cyclone Nilam
• Cyclone Laila
• Cyclone Phailin

• Rapid Response - Cyclone Relief Organisation