The Thai Meteorological Department (TMD) today issued a warning for heavy rainfall across 40 provinces in Thailand, with 60% of these areas expected to be affected.
Nine provinces, including Chiang Rai, Phayao, Nan, Phrae, Uttaradit, Loei, Nong Khai, Chanthaburi, and Trat, are particularly at risk of flash floods and forest runoffs on July 16.
This weather pattern is influenced by a low-pressure system sitting over Laos and northern Vietnam. The southwest monsoon currently covering the Andaman Sea, Thailand, and the Gulf of Thailand is moderate. In the upper Andaman Sea, moderate waves are expected, reaching heights of about 2 metres.
In the lower Andaman Sea, wave heights are between 1 and 2 metres, with thunderstorms potentially increasing wave heights beyond 2 metres. Mariners in these regions are advised to navigate carefully and avoid areas with thunderstorms.
Weather forecasts indicate that the north will experience thunderstorms covering 80% of the area, with heavy to very heavy rainfall expected in Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Nan, Lamphun, Lampang, Phrae, Uttaradit, Phitsanulok, and Phetchabun.
Temperatures are expected to range from 23 to 27 degrees Celsius at the lowest, reaching up to 30 to 35 degrees Celsius at the highest, with southwesterly winds blowing at 10 to 20 kilometres per hour.
Weather forecast
In the northeast, thunderstorms are expected in 70% of the area, with heavy rainfall in Loei, Nong Khai, Bueng Kan, Udon Thani, Sakon Nakhon, Nakhon Phanom, Kalasin, Mukdahan, Yasothon, Amnat Charoen, and Ubon Ratchathani. Temperatures will range from 23 to 26 degrees Celsius at the lowest, up to 30 to 35 degrees Celsius at the highest, with southwesterly winds at 10 to 20 kilometres per hour.
Central Thailand is forecasted to have thunderstorms in 40% of the area, particularly in Kanchanaburi, Ratchaburi, Nakhon Pathom, and Samut Sakhon. Temperatures will be between 24 and 26 degrees Celsius at the lowest and 34 and 35 degrees Celsius at the highest.
The eastern region can expect thunderstorms in 60% of the area, with heavy rain in Nakhon Nayok, Prachin Buri, Chanthaburi, and Trat. Temperatures will range from 24 to 28 degrees Celsius at the lowest, rising to 32 to 35 degrees Celsius at the highest, with southwesterly winds blowing at 15 to 30 kilometres per hour. The sea will have waves about 1 metre high, increasing to over 2 metres in thunderstorms.
In southern Thailand (east coast), thunderstorms are expected in 40% of the area, particularly in Chumphon, Surat Thani, Nakhon Si Thammarat, Yala, and Narathiwat.
Temperatures will be between 23 and 26 degrees Celsius at the lowest, reaching up to 34 and 36 degrees Celsius at the highest, with winds at 15 to 30 kilometres per hour and sea waves reaching 1 metre, increasing to over 2 metres in thunderstorms.
On the west coast, 70% of the area will experience thunderstorms, with heavy rain in Ranong, Phang Nga, Phuket, and Krabi. Temperatures will range from 24 to 26 degrees Celsius at the lowest and 31 to 33 degrees Celsius at the highest.
From Phang Nga upwards, winds will blow at 20 to 35 kilometres per hour with waves about 2 metres high, increasing beyond that in thunderstorms. From Phuket downwards, winds will be at 15 to 35 kilometres per hour with wave heights between 1 and 2 metres.
In Bangkok and the surrounding areas, 60% of the area will have thunderstorms with some heavy rain. Temperatures will be between 26 and 27 degrees Celsius at the lowest, reaching up to 33 and 36 degrees Celsius at the highest, with southwesterly winds at 10 to 20 kilometres per hour. Residents are advised to remain cautious during these adverse weather conditions, reported KhaoSod.
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