<P> From January to October, the current is northward flowing, and the clockwise circulation pattern is called the "East Indian Current". The Bay of Bengal monsoon moves in a northwest direction striking the Nicobar Islands, and the Andaman Islands first end of May, then the north eastern coast of India by end of June . </P> <P> The remainder of the year, the counterclockwise current is southwestward flowing, and the circulation pattern is called the East Indian Winter Jet . September and December see very active weather, season varsha (or monsoon), in the Bay of Bengal producing severe cyclones which affect eastern India . Several efforts have been initiated to cope with storm surge . </P> <P> A tropical storm with rotating winds blowing at speeds of 74 miles (119 kilometres) per hour is called a cyclone when they originate over the Bay of Bengal; and called a hurricane in the Atlantic . Between 100,000 and 500,000 residents of Bangladesh were killed because of the 1970 Bhola cyclone . </P> <Ul> <Li> 2017, Severe Cyclonic Storm Mora </Li> <Li> 2017, Cyclone Maarutha </Li> <Li> 2016, Very Severe Cyclonic Storm Vardah </Li> <Li> 2016, Cyclone Nada </Li> <Li> 2016, Cyclone Kyant </Li> <Li> 2016, Cyclone Roanu </Li> <Li> 2015, Cyclone Komen </Li> <Li> 2014, Very Severe Cyclonic Storm Hudhud </Li> <Li> 2013, Very Severe Cyclonic Storm Phailin </Li> <Li> 2013, Cyclone Viyaru </Li> <Li> 2012, Cyclone Nilam </Li> <Li> 2011, Very Severe Cyclonic Storm Thane </Li> <Li> 2010, Very Severe Cyclonic Storm Giri </Li> <Li> 2009, Very Severe Cyclonic Storm Aila </Li> <Li> 2008, Very Severe Cyclonic Storm Nargis </Li> <Li> 2007, Very Severe Cyclonic Storm Sidr </Li> <Li> 2006, Very Severe Cyclonic Storm Mala </Li> <Li> 1999, Odisha Super Cyclonic Storm 05B </Li> <Li> 1996, Konaseema Cyclone </Li> <Li> 1991, Super Cyclonic Storm 02B </Li> <Li> 1989, November Typhoon Gay </Li> <Li> 1985, May Tropical Storm One (1B) </Li> <Li> 1982, April Cyclone One (1B) </Li> <Li> 1982, May Tropical Storm Two (2B) </Li> <Li> 1982, October Tropical Storm Three (3B) </Li> <Li> 1981, December Cyclone Three (3B) </Li> <Li> 1980, October Tropical Storm One (1B) </Li> <Li> 1980, December Unknown Storm Four (4B) </Li> <Li> 1980, December Tropical Storm Five (5B) </Li> <Li> 1977, Andhra Pradesh Cyclone (6B) </Li> <Li> 1971, Cyclone Odisha </Li> <Li> 1970, November Bhola cyclone </Li> <Li> The Calcutta cyclone of 1864: caused a storm surge of 40 feet . Barometer 28.025 inches of mercury . 50,000 direct deaths and 30,000 from disease . </Li> <Li> The Backergunge cyclone of 1876: 10 to 30 or 40 feet storm surge . 100,000 direct deaths and 100,000 indirect from disease . </Li> <Li> The False Point cyclone of 1885: 22 feet of storm surge . Barometer 27.135 inches of mercury . </Li> </Ul>

Which river is not flowing into bay of bengal