Meteorological Department Issues Warning #9: Heavy to Very Heavy Rainfall with List of Affected Provinces

On May 17, 2569, the Thai Meteorological Department issued warning #9 (69/2569) regarding heavy to very heavy rainfall across Thailand and strong winds in the Andaman Sea, with effects lasting until May 18, 2569. The department reports continuous rainfall with heavy to very heavy downpours in parts of the Northern, Central, Northeastern, Eastern, and Southern regions. Residents are advised to exercise caution regarding dangers from heavy rainfall and accumulated water that may cause flash flooding and flash floods, particularly in foothill areas near water channels and low-lying areas. This is due to the strengthening of the southwest monsoon affecting the Andaman Sea, Thailand, and the Gulf of Thailand.

The Andaman Sea in the north from Phuket northward will see waves 2-3 meters high, with areas experiencing thunderstorms seeing waves exceeding 3 meters. The lower Andaman Sea from Krabi southward and the upper Gulf of Thailand will experience waves around 2 meters high, with thunderstorm areas seeing waves exceeding 2 meters. Fishermen are advised to navigate carefully and avoid areas with thunderstorms, while small boats in the upper Andaman Sea should refrain from leaving shore.

Affected provinces on May 17 with very heavy rainfall: Ranong and Phangnga (South)

Affected provinces on May 17 with heavy rainfall: North: Tak, Kamphaeng Phet, Phichit, Phitsanulok, and Phetchabun Northeast: Loei, Nong Khai, Bueng Kan, Nong Bua Lamphu, Udon Thani, Sakon Nakhon, Nakhon Phanom, Yasothon, Amnat Charoen, Sisaket, and Ubon Ratchathani Central: Nakhon Sawan, Uthai Thani, Chainat, Kanchanaburi, Ratchaburi, Nakhon Pathom, and Samut Sakhon, including Bangkok and surrounding areas East: Nakhon Nayok, Prachuap Khiri Khan, Chachoengsao, Chonburi, Rayong, Chanthaburi, and Trat South: Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, Nakhon Si Thammarat, Phuket, Krabi, and Trang

Affected provinces on May 18 with very heavy rainfall: Tak (North), Kanchanaburi (Central), Chanthaburi and Trat (East), Ranong and Phangnga (South)

Affected provinces on May 18 with heavy rainfall: North: Sukhothai, Uttaradit, Kamphaeng Phet, Phichit, Phitsanulok, and Phetchabun Northeast: Loei, Nong Khai, Bueng Kan, Nong Bua Lamphu, Udon Thani, Sakon Nakhon, Nakhon Phanom, Chaiyaphum, Khon Kaen, Kalasin, Maha Sarakham, Mukdahan, and Nakhon Ratchasima Central: Nakhon Sawan, Uthai Thani, Chainat, Singburi, and Ang Thong

The public can monitor updates from the Thai Meteorological Department website at http://www.tmd.go.th or by calling 0-2399-4012-13 and 1182 available 24 hours. The next warning will be issued on May 17, 2569 at 5:00 PM.