The deep depression over the Bay of Bengal developed into a cyclone on Sunday but the weatherman said the storm, which was advancing towards the coast at 70-80km per hour, might miss Calcutta.
At 5.30pm, cyclone Aila (name chosen from a list following a convention) was 500km south of Calcutta.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/cyclone-aila-bring-heavy-rain
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/telegraph-kolkata
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bay-bengal
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-disasters
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cyclones
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/calcutta-d
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rainfall