Though the monsoon continued to be weak over Odisha, the possibility of southeasterly wind flow from the Bay of Bengal towards the coast could trigger increased rainfall in the state between July 11 and 13, a bulletin by SOA’s Centre for Environment and Climate (CEC) said on Monday.

The weak monsoon with sporadic light to moderate rainfall had been caused by the presence of plenty of moisture with relative humidity exceeding 80 per cent, it said.

However, there is a probability of formation of a cyclonic circulation over the north-west Bay of Bengal which will increase precipitation in the state from July 18 and lead to creation of a low pressure area on the same day. This system will gradually intensify into a deep depression by July 20, the bulletin said.

Under its influence, heavy to very heavy rainfall could occur at most places between July 21 and 23 across north and western Odisha, it said.