The Thai Meteorological Department has issued a severe weather alert for 64 provinces across Thailand, with forecasts of intense thunderstorms, strong winds, hail, and heavy rainfall expected over the next 24 hours, particularly affecting the North and Northeast regions. A cold air mass from China combined with extreme heat in upper Thailand is creating dangerous storm conditions, prompting authorities to warn the public to seek shelter and farmers to protect their crops and livestock. The South is expected to experience scattered thunderstorms with moderate dust levels, while temperature extremes ranging from 20-40°C are anticipated across different regions.
The Thai Meteorological Department forecasts severe thunderstorms today with heavy rain, strong winds, and hail affecting 64 provinces throughout the North and Northeast. On April 30, 2025, the 24-hour weather forecast predicts thunderstorms in the North, Northeast, East, Central regions, Bangkok, and surrounding areas, with characteristics including thunderstorms, strong wind gusts, scattered hail, and possible lightning strikes. This is caused by a high-pressure zone and cold air mass from China covering the Northeast and South China Sea, while upper Thailand experiences extreme heat. Public warning: avoid open areas, large trees, weak structures, and unstable signs. Farmers should reinforce fruit trees and prepare to protect crops and livestock from potential damage, and monitor health during weather changes.
The South will experience scattered thunderstorms due to easterly and southeast winds covering the Gulf of Thailand, southern region, and Andaman Sea. Dust and haze levels in the North, Northeast, and upper Central regions have decreased to moderate levels due to thunderstorm activity.
North: Generally hot with some extremely hot areas, 40% thunderstorm coverage with strong gusts and scattered hail, heavy rain in some areas. Provinces affected: Mae Hong Son, Chiang Rai, Chiang Mai, Lampang, Phayao, Phrae, Nan, Tak, Sukhothai, Uthai Thani, Phitsanulok, Phichit, and Phetchabun. Low: 20-27°C, High: 29-40°C. Southwest winds 5-15 km/h.
Northeast: 60% thunderstorm coverage with strong gusts and scattered hail, heavy rain in some areas. Provinces affected: Loei, Nong Khai, Bueng Kan, Nong Bua Lam Phu, Udon Thani, Sakon Nakhon, Nakhon Phanom, Mukdahan, Chaiyaphum, Khon Kaen, Kalasin, Maha Sarakham, Roi Et, Yasothon, Amnat Charoen, Nakhon Ratchasima, Buriram, Surin, Si Sa Ket, and Ubon Ratchathani. Low: 21-24°C, High: 30-34°C. Southeast winds 10-15 km/h.
Central: Hot to extremely hot midday with 40% thunderstorm coverage and some strong gusts. Provinces affected: Nakhon Sawan, Lopburi, Saraburi, Ayutthaya, Nakhon Pathom, Uthai Thani, Chai Nat, Sing Buri, Ang Thong, Suphan Buri, Kanchanaburi, and Ratchaburi. Low: 25-28°C, High: 37-40°C. Southern winds 10-15 km/h.
East: Hot midday with 60% thunderstorm coverage, strong gusts and scattered hail. Provinces affected: Nakhon Nayok, Prachuap Khiri Khan, Chachoengsao, Sa Kaew, Chon Buri, Rayong, Chanthaburi, and Trat. Low: 25-28°C, High: 33-37°C. Southeast winds 15-30 km/h. Sea waves approximately 1 meter, higher than 1 meter in thunderstorm areas.
South (East Coast): Hot midday with 20% thunderstorm coverage. Provinces affected: Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, Yala, and Narathiwat. Low: 24-27°C, High: 34-38°C. Southeast winds.