Meteorological Bureau Warns 37 Provinces of Heavy Monsoon Rains
Thailand's Meteorological Department warns 37 provinces of heavy monsoon rains and potential flooding over the next 24 hours, with the southwest monsoon affecting northern, northeastern, central, and eastern regions. Mariners are advised to
The Meteorological Department has identified 37 provinces facing strong monsoon conditions with heavy rainfall covering 60 percent of affected areas, including Bangkok and its vicinity. Forecasts for the next 24 hours predict continuing heavy rain across the northern, northeastern, central, and eastern regions caused by a monsoon trough moving over upper northern Thailand and northern Laos, combined with a strengthening southwest monsoon sweeping across the Andaman Sea, Thailand, and the Gulf of Thailand.
Public warnings have been issued regarding hazards from heavy to very heavy rainfall and accumulated precipitation, which may trigger flash flooding and forest runoff, especially in foothill areas near waterways and low-lying zones.
Waves in the northern Andaman Sea and upper Gulf of Thailand are forecast at 2–3 meters, with thunderstorm areas experiencing waves exceeding 3 meters. Mariners are advised to navigate cautiously and avoid thunderstorm zones, while small vessels in the northern Andaman Sea and upper Gulf should remain in port.
Typhoon Dolphin, currently over the East China Sea, is expected to make landfall in Zhejiang Province, China on August 9–10 and will not enter Thai territory. Travelers to that region should check weather conditions before departure.
Detailed regional forecasts for Thailand (06:00 today to 06:00 tomorrow):
**Northern Region:** Thunderstorms in 70 percent of the area with heavy rain in many locations, particularly in Mae Hong Son, Chiang Mai, Chiang Rai, Lampang, Phayao, Nan, Phrae, Uttaradit, Tak, Phitsanulok, and Phetchabun provinces. Low 22–27°C, high 31–35°C. Southwest winds 10–20 km/h.
**Northeastern Region:** Thunderstorms in 60 percent of the area with some heavy rain, particularly in Nong Khai, Bueng Kan, Udon Thani, Sakon Nakhon, Nakhon Phanom, Mukdahan, Amnat Charoen, Nakhon Ratchasima, and Ubon Ratchathani provinces. Low 23–25°C, high 29–34°C. Southwest winds 10–20 km/h.
**Central Region:** Thunderstorms in 60 percent of the area with some heavy rain, particularly in Lopburi, Saraburi, and Kanchanaburi provinces. Low 23–26°C, high 33–36°C. Southwest winds 10–25 km/h.
**Eastern Region:** Thunderstorms in 60 percent of the area with some heavy rain, particularly in Nakhon Nayok, Prachuap Khiri Khan, Chanthaburi, and Trat provinces. Low 24–27°C, high 30–34°C. Southwest winds 20–40 km/h. Seas: waves 2–3 meters, exceeding 3 meters in thunderstorm areas.
**Southern Region (Eastern Coast):** Thunderstorms in 30 percent of the area, mainly in Phetchaburi, Prachuap Khiri Khan, Surat Thani, Yala, and Narathiwat provinces. Low 23–26°C, high 32–36°C. Southwest winds 20–35 km/h. Seas: waves 1–2 meters, exceeding 2 meters offshore and in thunderstorm areas.
**Southern Region (Western Coast):** Thunderstorms in 30 percent of the area, mainly in Ranong, Phang Nga, Trang, and Satun provinces. Low 24–27°C, high 31–35°C. From Phuket northward: southwest winds 20–40 km/h, waves 2–3 meters, exceeding 3 meters in thunderstorm areas. From Krabi southward: southwest winds 20–35 km/h.
