Bhubaneswar: The low-pressure area, which is likely to form over west-central and adjoining north Bay of Bengal around May 27, may move north-northwestwards along the Odisha coast.
It would lead to an increase in monsoon current over the Bay of Bengal, the India Meteorological Department (IMD) said in its tropical weather outlook on Sunday.
“Models like NCUM, IMD GFS and ECMWF are indicating the remnant of existing well marked low pressure area over south Madhya Maharashtra & adjoining Marathwada & North Interior Karnataka would move across, Marathwada, Telangana & Andhra Pradesh and emerge into west-central & adjoining northwest BoB around May 27. It would lead to the formation of a low-pressure area over the same region. Gradually it is predicted to move north northwestwards along the Odisha coast and may lead to enhancement of monsoon current over the Bay of Bengal,” it said.
The IMD further stated that NCEP GFS is indicating development of a low-pressure area over east-central Bay of Bengal on May 26 and depression over the same region the following day. “Thereafter, it is indicated to move north-northwestwards and cross Bangladesh coast as a deep depression or higher intensity system around May 29,” it said.
It, however, added there was a low chance of a depression forming over the Bay of Bengal on May 28-29.
On Saturday, Centre for Environment and Climate (CEC) of SOA Deemed to be University here said that the possibility of formation of a low-pressure area over the north-west Bay of Bengal may lead to early onset of the south-west monsoon over Odisha.
“The low-pressure area is likely to form on the Odisha coast either on May 26 or May 27. Overcast conditions with light rain and thunderstorms are expected over the state and rainfall is likely to increase from May 27 afternoon under the influence of the system,” CEC director S C Sahu said.
The intensity of rainfall may be too high in the districts of Mayurbhanj, Keonjhar, Balasore, Bhadrak, Jajpur, Dhenkanal, Sundargarh, Jagatsinghpur, Kendrapara, Puri and Khurda, he said.
“These rain bearing systems may signal the onset of monsoon over Odisha on May 28 or 29—about two weeks before the normal date of arrival of the rains in the state.The rains occurring now may be termed as pre-monsoon rain with decreasing day temperature and increase in humidity,” he said
Sahu added the depression over Arabian Sea had now entered south Maharashtra and its wind pattern favoured flow of moisture towards the Indian land mass including Odisha.
