Thailand is expected to face two storms from September to October bringing heavy rainfall across various regions, according to the Meteorological Department.
Thanasit Iam-ananchai, the department's deputy chief, said two direct storms are forecast to affect the country during these two months.
He said there is no storm affecting Thailand at the moment and persistent rainfall causing runoff and flooding in the northern region and the upper part of the northeastern region is due to the monsoon weather system.
The department has also warned about heavy rainfall across the country especially in the southern, eastern and central regions during Sept 1-3.
The department said these regions including Bangkok and adjacent provinces should brace for rain that will cover about 70-80% of those regions during this period.
Bangkok governor Chadchart Sittipunt yesterday proposed that the government build a sluice gate at the mouth of the Chao Phraya River similar to the Thames Barrier in London.
Amid global warming, the proposed gate, a long-term flood defence plan, would help protect the capital from tidal surges and and other risks, he said.
But he noted the government needs to be involved because the Bangkok Metropolitan Administration (BMA) cannot carry out the proposed flood management plan by itself.
He said the project requires cooperation from several provinces and agencies and includes the relocation of Klong Toey port to Chon Buri's Laem Chabang to better manage and regulate the water level there.
He urged PM Paetongtarn Shinawatra to consider the proposal.
"It's not a two-year project but a long-term one spanning 20-30 years."
