Tropical Storm Maysak Warning For 32 Thai Provinces
Thailand's Meteorological Department warned 32 provinces of heavy rainfall from Tropical Storm Maysak through July 5-6, with the storm expected to pass near China while monsoon winds intensify precipitation across the north, northeast, east
The Meteorological Department issued its third warning (106/2569) regarding Tropical Storm Maysak at 5 p.m. on July 3, 2025. As of 4 p.m., the storm was positioned in the upper South China Sea south of Hainan Island at coordinates 18.3°N, 109.9°E, with maximum wind speeds of 74 kilometers per hour. The tropical storm is moving slowly northward and is expected to cross Hainan Island this evening before making landfall near Nanning, China, between July 4-6, with its center remaining outside Thai territory.
Under the influence of Storm Maysak, an active monsoon trough, and a strengthening southwest monsoon, Thailand will experience increased rainfall from July 3-4, particularly in the northern, upper northeastern, eastern, and southern regions, with some areas facing very heavy precipitation. The northern highlands and upper northeastern plateau will continue experiencing heavy rainfall through July 5-6.
Sea conditions are worsening. The upper Andaman Sea will see waves of 2-3 meters, exceeding 3 meters in thunderstorm areas. The lower Andaman Sea and upper Gulf of Thailand will have waves around 2 meters, exceeding 2 meters during thunderstorms. Mariners are advised to exercise caution and avoid sailing through thunderstorm areas, with small vessels in the upper Andaman Sea recommended to stay ashore during this period.
Residents are urged to plan activities and travel carefully during this period. Updates are available from the Meteorological Department at http://www.tmd.go.th, by phone at 0-2399-4012-13, or by calling 1182, available 24 hours daily. The next warning will be issued on July 3 at 11 p.m.
On July 4, the following provinces face very heavy rainfall: Nong Khai, Bueng Kan, and Nakhon Phanom (upper northeast); Kanchanaburi (central); and Chanthaburi and Trat (eastern).
Heavy rainfall expected on July 4: Northern provinces—Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Nan, Tak, Kamphaengphet, Phichit, Phitsanulok, and Phetchabun; Upper northeast—Loei, Udon Thani, Sakon Nakhon, Mukdahan, Yasothon, Amnat Charoen, Surin, Sisaket, and Ubon Ratchathani; Central—Ratchaburi; Eastern—Nakhon Nayok, Prachuap Khiri Khan, Sa Kaeo, Chachoengsao, Chonburi, and Rayong; Southern—Phetchaburi, Ranong, and Phangnga.
On July 5, very heavy rainfall expected: Upper northeast—Nong Khai, Bueng Kan, Nakhon Phanam, and Ubon Ratchathani; Central—Kanchanaburi; Eastern—Chanthaburi and Trat.
Heavy rainfall on July 5: Northern provinces—Mae Hong Son, Chiang Mai, Chiang Rai, Lampang, Phayao, Nan, Phrae, Tak, Kamphaengphet, and Phichit.
