Thunderstorms to hit 39 provinces including Bangkok

The Thai Meteorological Department (TMD) forecasted thunderstorms for tomorrow, warning that 39 provinces, including Bangkok, will be affected. The northern regions are expected to be hit the hardest, with 70% of the area experiencing heavy rainfall. Residents are advised to be cautious of potential flash floods and forest runoff.

The TMD issued a 24-hour weather forecast indicating that the upper northern and northeastern regions will experience very heavy rainfall in some areas. Central, eastern, and lower southern regions will also see heavy rain in certain areas.

Residents in these regions should be vigilant for severe weather conditions and accumulated rainfall, which may lead to flash floods and landslides, particularly in mountainous areas near waterways and low-lying regions.

The current weather conditions are due to the monsoon trough passing through Myanmar and upper Laos, entering a low-pressure area over northern Vietnam. Additionally, the southeastern and southwestern wind convergence at higher altitudes covers the northeastern region, while the southwestern monsoon continues to prevail over the Andaman Sea, Thailand, and the Gulf of Thailand.

The TMD has also provided a four-day weather forecast for Bangkok and its vicinity. Heavy rainfall is expected in the area, with continuous rain predicted for the next ten days. The department advises residents to prepare for severe monsoon conditions.

In the Andaman Sea and the Gulf of Thailand, waves are expected to reach around 1 metre in height, with higher waves in areas experiencing thunderstorms. Mariners are advised to avoid navigating in stormy regions.

Thunderstorm warning

The northern region will experience thunderstorms covering 70% of the area, with very heavy rain in some places, particularly in Mae Hong Son, Chiang Mai, Chiang Rai, Lampang, Phayao, Nan, Tak, Sukhothai, Uttaradit, Phitsanulok, and Phetchabun provinces. Temperatures will range from 23°C to 27°C, with highs between 30°C and 36°C. Southwesterly winds will blow at speeds of 5 to 15 kilometres per hour.

The northeastern region will see thunderstorms in 60% of the area, with very heavy rain in some locations, including Loei, Nong Khai, Bueng Kan, Nong Bua Lamphu, Udon Thani, Sakon Nakhon, Nakhon Phanom, Khon Kaen, Kalasin, and Mukdahan provinces. Temperatures will range from 24°C to 26°C, with highs between 30°C and 35°C. Southwesterly winds will blow at speeds of 10 to 20 kilometres per hour.

The central region will have thunderstorms in 60% of the area, with heavy rain in some parts, particularly in Nakhon Sawan, Lopburi, and Saraburi provinces. Temperatures will range from 24°C to 26°C, with highs between 34°C and 36°C. Southwesterly winds will blow at speeds of 10 to 20 kilometres per hour.

The eastern region will experience thunderstorms in 60% of the area, with heavy rain in some locations, such as Nakhon Nayok, Prachinburi, Chanthaburi, and Trat provinces. Temperatures will range from 25°C to 27°C, with highs between 33°C and 36°C. Southwesterly winds will blow at speeds of 15 to 30 kilometres per hour. Waves in the sea will be around 1 metre high, with higher waves in stormy areas.

The southern (eastern coast) region will have thunderstorms in 60% of the area, with heavy rain in some places, including Nakhon Si Thammarat, Phatthalung, Songkhla, Pattani, Yala, and Narathiwat provinces. Temperatures will range from 23°C to 26°C, with highs between 34°C and 37°C. Southwesterly winds will blow at speeds of 15 to 30 kilometres per hour. Waves in the sea will be around 1 metre high, with higher waves in stormy areas.

The southern (western coast) region will experience thunderstorms in 60% of the area, with heavy rain in some locations, particularly in Phang Nga, Phuket, Krabi, Trang, and Satun provinces. Temperatures will range from 24°C to 26°C, with highs between 31°C and 33°C. Southwesterly winds will blow at speeds of 15 to 30 kilometres per hour. Waves in the sea will be around 1 metre high, with higher waves in stormy areas.

Bangkok and its vicinity will see thunderstorms in 60% of the area, with heavy rain in some parts. Temperatures will range from 25°C to 27°C, with highs between 34°C and 36°C. Southwesterly winds will blow at speeds of 10 to 20 kilometres per hour.