Heavy rain warning issued for 30 provinces in Thailand

The Thai Meteorological Department (TMD) issued a warning of heavy rainfall across 30 provinces, advising caution for potential flash floods and forest runoffs. Bangkok and surrounding regions are expected to experience rainfall over 60% of the area, while the sea waves could reach up to 2 metres high.

The TMD forecasted the weather for the next 24 hours at 11pm yesterday. A moderate southwest monsoon is covering the Andaman Sea, Thailand, and the Gulf of Thailand, resulting in heavy rainfall in some northern and northeastern areas. The eastern region is expected to see very heavy rainfall in certain areas.

Residents in these regions are urged to be cautious of the heavy rain and accumulated rainfall, which may lead to sudden flooding and forest runoff, particularly in hilly areas near water flows and low-lying regions. The Andaman Sea and the Gulf of Thailand are experiencing moderate wind and waves.

The upper Andaman Sea has waves reaching about 2 metres, while the lower Andaman Sea and upper Gulf of Thailand have waves between 1 and 2 metres. In stormy areas, waves could exceed 2 metres. Mariners in these areas should navigate with caution and avoid sailing in stormy regions.

Meanwhile, tropical storm Phra Pirun in northern Vietnam has weakened into a depression and is expected to further diminish into a low-pressure system. This storm will not directly affect Thailand’s weather. However, travellers to the affected regions are advised to check the weather conditions before starting their journey.

The weather forecast for Thailand from midnight today until midnight tomorrow is as follows:

Northern Region

Thunderstorms are expected in 40% of the area, mainly in Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Nan, Tak, and Uttaradit provinces. The minimum temperature will be between 24 and 27 degrees Celsius, and the maximum temperature will range from 31 to 34°C.

Northeastern Region

Thunderstorms are forecasted for 60% of the area with heavy rain in some areas, including Nong Khai, Bueng Kan, Sakon Nakhon, Nakhon Phanom, and Mukdahan provinces. Temperatures will range from 23 to 26°C at the lowest and 31 to 34°C at the highest.

Central Region

Thunderstorms are expected in 60% of the area, mainly in Nakhon Sawan, Uthai Thani, Kanchanaburi, Ratchaburi, Nakhon Pathom, and Samut Sakhon provinces. The temperature will range from a minimum of 24 to 26°C to a maximum of 33 to 35°C.

Eastern Region

Thunderstorms are expected in 60% of the area with very heavy rain in some areas, including Nakhon Nayok, Prachin Buri, Sa Kaeo, Chanthaburi, and Trat provinces. The temperature will range from 23 to 28°C at its lowest to 31 to 34°C at its highest. The sea will have waves between 1 and 2 metres, rising to more than 2 metres in stormy areas.

Southern Region (East Coast)

Thunderstorms are forecasted for 30% of the area, primarily in Phetchaburi, Prachuap Khiri Khan, Chumphon, and Surat Thani provinces. The temperature will range from 24 to 26°C at its lowest to 33 to 36°C at its highest. From Surat Thani upwards, the sea will have waves between 1 and 2 metres and more than 2 metres in stormy areas. From Nakhon Si Thammarat downwards, the sea will have waves around 1 metre, rising to more than 1 metre in stormy areas.

Southern Region (West Coast)

Thunderstorms are expected in 30% of the area, mainly in Ranong, Phang Nga, and Phuket provinces. The temperature will range from 24 to 26°C at its lowest to 32 to 34°C at its highest. From Phang Nga upwards, the sea will have waves around 2 metres and more than 2 metres in stormy areas. From Phuket downwards, the sea will have waves between 1 and 2 metres, rising to more than 2 metres in stormy areas.

Bangkok and surrounding areas

Thunderstorms are expected in 60% of the area. The temperature will range from 26 to 27°C at its lowest to 33 to 35°C at its highest, reported KhaoSod.