More heavy to very heavy rains are anticipated today until Sunday in four parts of the country, the Meteorological Department said.
In the latest announcement before noon, affected by heavy to very rains from today until May 28 are provinces in the northern, northeastern, central and southern regions.
People in the northeastern provinces are warned to brace for rains first, following by people in the eastern part of the North.
Later from May 26-28, those in central, eastern region and Bangkok will be affected by heavy to very heavy rains, it said.
It added that the rains are anticipated as low pressure front is blanketing Vietam and Tonkin Bay while the southwesterly monsoon blowing in the Andaman Sea is strengthening.
It warned people in affected areas of possible flashfloods and surface runoff.
Source: Thai Public Broadcasting Service (Thai PBS)