Thailand Braces for Heavy Rain, Flash Floods in 48 Provinces
Thailand's Meteorology Department warned that 48 provinces will experience heavy thunderstorms and potential flash floods over the next 24 hours, with northern and northeastern regions facing the heaviest rainfall and waves in the Andaman S
The Meteorology Department warned on August 19 that 48 provinces will face heavy thunderstorms affecting 70 percent of affected areas over the next 24 hours, with Bangkok and its surrounding regions facing severe conditions. Heavy rainfall is forecast for the upper northern, upper northeastern, and eastern regions due to a monsoon trough entering a low-pressure system over northern Vietnam, combined with a strong southwest monsoon across the Andaman Sea, Thailand, and the Gulf of Thailand. The public is urged to exercise caution against heavy to very heavy rain and accumulated rainfall that may cause flash floods, forest runoff, and riverbank overflow, particularly in foothill areas and low-lying zones. Waves in the Andaman Sea and upper Gulf of Thailand are expected to reach 2–3 meters, exceeding 3 meters in thunderstorm areas; sailors are advised to navigate with care and avoid stormy waters, with small boats in the upper Andaman Sea advised to remain ashore.
Regional forecasts from 6 a.m. today to 6 a.m. tomorrow:
North: Thunderstorms in 70 percent of the area with heavy rain in Mae Hong Son, Lampun, Uttaradit, Sukhothai, Tak, Phichit, Phitsanulok, and Phetchabun, with very heavy rain in Chiang Mai, Chiang Rai, Phayao, Nan, Phrae, and Lamphun. Lows 23–28°C, highs 29–34°C. Southwest winds 10–20 kph.
Northeast: Thunderstorms in 70 percent of the area with heavy rain in Loei, Nong Bua Lamphu, Udon Thani, Khon Kaen, Maha Sarakham, Roi Et, Yasothon, Chaiyaphum, Amnat Charoen, Nakhon Ratchasima, Buriram, Surin, Si Sa Ket, and Ubon Ratchathani, with very heavy rain in Nong Khai, Bueng Kan, Nakhon Phanom, Sakon Nakhon, Mukdahan, and Kalasin. Lows 22–25°C, highs 28–33°C. Southwest winds 10–20 kph.
Central: Thunderstorms in 60 percent of the area with heavy rain in Nakhon Sawan, Phra Nakhon Si Ayutthaya, Lopburi, Saraburi, Kanchanaburi, and Ratchaburi. Lows 25–26°C, highs 34–36°C. Southwest winds 10–25 kph.
East: Thunderstorms in 70 percent of the area with heavy rain in Nakhon Nayok, Prachuap Khiri Khan, Sa Kaew, Chachoengsao, and Chonburi, with very heavy rain in some areas of Trat. Lows 24–28°C, highs 30–33°C. Southwest winds 20–35 kph. Seas 2 meters high, exceeding 2 meters in thunderstorm areas.
South (East Coast): Thunderstorms in 40 percent of the area, mainly in Prachuap Khiri Khan, Chumphon, Nakhon Si Thammarat, Yala, and Narathiwat. Lows 23–25°C, highs 33–35°C. Southwest winds 15–35 kph. Seas 1–2 meters, approximately 2 meters offshore, exceeding 2 meters in thunderstorm zones.
South (West Coast): Thunderstorms in 60 percent of the area with heavy rain in Ranong and Phang Nga. Lows 24–27°C, highs 29–34°C.
