Under the influence of the Upper Air Cyclonic Circulation over the Gulf of Siam and neighbourhood, a low pressure area was formed over the Tenasserim Coast and adjoining Andaman Sea at 0830 hours IST today, a bulletin issued by the IMD said.
It would concentrate into a Well Marked Low Pressure Area during the next 24 hours and further concentrate into a Depression during subsequent 24 hours causing rain and thundershower in one or two places in the state during the next 24 hours, the bulletin said.