Nation Thailand
TMD warns 37 provinces of heavy rain as new storm may strengthen
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The Thai Meteorological Department (TMD) has issued Warning No. 12 for heavy to very heavy rain across Thailand on September 12-13, putting 37 provinces on alert for flash floods and run-off, while Bangkok and surrounding provinces face thunderstorms across 70% of the area.
Key facts
- The warning, issued at 5pm on Saturday (September 12), said very heavy rain was expected in parts of the South, while heavy rain was forecast in the lower North, Northeast, Central region, Bangkok and surrounding provinces, and the East.
- In the North, thunderstorms are forecast across 40% of the region, mainly in Mae Hong Son, Chiang Mai, Tak and Kamphaeng Phet
- In the Northeast, thunderstorms are expected across 40% of the region, with heavy rain in Yasothon, Mukdahan, Amnat Charoen, Surin, Si Sa Ket and Ubon Ratchathani
- The Central region will see thunderstorms across 70% of the area, with heavy rain forecast in Uthai Thani, Chai Nat, Ayutthaya, Suphan Buri, Kanchanaburi, Ratchaburi, Nakhon Pathom, Samut Sakhon and Samut Songkhram
- In the East, thunderstorms are forecast across 70% of the region, with heavy rain in Nakhon Nayok, Prachin Buri, Sa Kaeo, Chachoengsao, Chonburi, Rayong, Chanthaburi and Trat
- On the southern east coast, thunderstorms are expected across 70% of the region.
Summary
The warning, issued at 5pm on Saturday (September 12), said very heavy rain was expected in parts of the South, while heavy rain was forecast in the lower North, Northeast, Central region, Bangkok and surrounding provinces, and the East.
The conditions are being driven by a high-pressure system or cool air mass from China extending over the upper North and upper Northeast, while a monsoon trough lies across the lower Central region, upper South, upper Gulf of Thailand and the East towards an active low-pressure cell along the coast of central Vietnam.