PATTAYA, Thailand – Thailand’s Meteorological Department has warned that heavy rain will continue across several regions of the country over the next 24 hours, with 44 provinces expected to be affected by thunderstorms and localized downpours. Authorities are urging residents in vulnerable areas to remain alert for possible flash floods, forest runoff, and rising water levels.
According to the department’s latest forecast issued on June 13, moderate southwest monsoon winds continue to prevail over the Andaman Sea, Thailand, and the Gulf of Thailand, while a low-pressure system over northern Myanmar is enhancing rainfall across parts of the country.
The heaviest rainfall is expected in the North, East, and parts of the South, where isolated heavy showers could trigger flooding in low-lying areas and near waterways.
In northern Thailand, thunderstorms are forecast across 70 percent of the region, with heavy rain expected in Mae Hong Son, Chiang Mai, Chiang Rai, Lamphun, Lampang, Nan, Kamphaeng Phet, Tak, and Phitsanulok. Eastern Thailand is expected to see thunderstorms covering 40 percent of the area, with heavy rain likely in Rayong, Chanthaburi, and Trat. The region remains vulnerable to localized flooding due to accumulated rainfall.
Southern Thailand’s Andaman coast is also forecast to receive heavy rain, particularly in Krabi, Trang, and Satun, while thunderstorms are expected across parts of the Gulf coast, including Surat Thani, Nakhon Si Thammarat, Phatthalung, Songkhla, Pattani, Yala, and Narathiwat. Bangkok and surrounding provinces are forecast to experience thunderstorms across 60 percent of the area, with temperatures ranging between 25 and 35 degrees Celsius.
Marine conditions remain relatively moderate, but officials warned that waves in thunderstorm areas could exceed two meters. Boat operators in both the Andaman Sea and the Gulf of Thailand have been advised to exercise caution and avoid sailing through storm-affected waters. The Meteorological Department urged residents, particularly those living near hillsides, waterways, and flood-prone areas, to closely monitor weather updates and prepare for possible flash floods and sudden runoff caused by heavy and accumulated rainfall. Authorities are continuing to monitor conditions and have advised the public to follow official forecasts as weather patterns remain unstable across much of the country.
