Heavy Rain Expected Across 33 Thai Provinces
Thailand's Meteorological Department warned of heavy to very heavy rain across 33 provinces through August 19, with thunderstorms affecting up to 60% of northeastern regions and potential flash floods in low-lying areas.
The Meteorological Department warned of heavy to very heavy rain in parts of Thailand on Tuesday, with thunderstorms forecast to cover up to 60% of some regions, including Bangkok and surrounding provinces.
A monsoon trough is moving southward across upper Laos toward a low-pressure cell over northern Vietnam, while the southwest monsoon covering the Andaman Sea, Thailand and the Gulf of Thailand is strengthening. The forecast covers the 24-hour period from 06:00 on 18 August to 06:00 on 19 August.
Residents in affected areas were advised to beware of heavy to very heavy rainfall and accumulated rain, which could trigger flash floods, forest runoff and overflowing waterways, particularly in foothill areas, near waterways and in low-lying areas.
Waves in the Andaman Sea and Gulf of Thailand will be moderate, with waves in the upper Andaman Sea and upper Gulf around 2 meters high, rising above 2 meters during thunderstorms. Boaters were advised to exercise caution and avoid areas experiencing thunderstorms.
In the North, thunderstorms are forecast over 40% of the area, with isolated heavy rain expected in Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Nan, Lampang, Phrae and Tak. Temperatures will range from 22-28°C, with highs of 32-36°C and southwest winds reaching 10-20 kph.
The Northeast will see thunderstorms covering 60% of the region, with heavy rain in Nong Khai, Udon Thani, Sakon Nakhon, Kalasin, Mukdahan, Roi Et, Yasothon, Amnat Charoen, Surin, Si Sa Ket and Ubon Ratchathani, and very heavy rain in Bueng Kan and Nakhon Phanom. Temperatures will range from 24-26°C, with highs of 33-36°C and southwest winds reaching 10-20 kph.
In the Central region, thunderstorms will cover 40% of the area, mainly in Kanchanaburi and Saraburi. Temperatures will range from 24-27°C, with highs of 35-37°C and southwest winds reaching 10-25 kph.
The East will experience thunderstorms covering 60% of the region, with heavy rain in Nakhon Nayok and Chanthaburi and isolated very heavy rain in Trat. Temperatures will range from 22-26°C, with highs of 31-35°C, southwest winds reaching 20-35 kph, and waves around 2 meters high, rising above 2 meters during thunderstorms.
On the east coast of the South, thunderstorms will cover 30% of the area, mainly in Prachuap Khiri Khan, Chumphon, Nakhon Si Thammarat, Yala and Narathiwat. Temperatures will range from 23-26°C, with highs of 33-36°C, southwest winds reaching 15-35 kph, and waves of 1-2 meters offshore, around 2 meters, rising above 2 meters during thunderstorms.
On the west coast of the South, thunderstorms will cover 40% of the area, mainly in Ranong, Phang Nga, Trang and Satun. Temperatures will range from 23-26°C, with highs of 31-34°C. From Ranong northward, southwest winds will reach 20-35 kph with waves around 2 meters and above 2 meters during thunderstorms. From Phang Nga southward, winds will reach 15-35 kph with waves of 1-2 meters, rising above 2 meters during thunderstorms.
