The Bay of Bengal Monsoon Experiment (BOB-

We document the flow features, which are associated with the important synoptic systems that aected the Bay of Bengal (BoB) and its neighbourhood and controlled the convective activity there during BOBMEX. The monsoon during July and August, 1999 was subdued. It was slightly more active in the initial phase of BOBMEX that commenced on 15th July 1999 and continued up to rst week of August 1999 but weakened during the second half of August. The convection was accordingly aected, reducing the rainfall over India. There were several active and weak spells of convection over the Bay of Bengal that manifested in ve low pressure systems, of which two became depressions