Heavy rain and thunderstorms to hit 32 Thai provinces today

The Thai Meteorological Department (TMD) issued another weather warning for today, predicting heavy rain in 32 provinces, with 60% of Bangkok expected to experience thunderstorms from afternoon to evening. Flash floods and forest runoff are potential risks.

The TMD forecasts increased rainfall across Thailand over the next 24 hours, particularly in the upper northeastern and lower southern regions. Despite the rain, daytime temperatures will remain high.

This weather pattern is driven by a moderate-strength southwesterly monsoon covering the Andaman Sea, Thailand, and the Gulf of Thailand. Additionally, a monsoon trough extending through upper Myanmar and Laos into a low-pressure area over northern Vietnam is contributing to these conditions.

Residents in affected areas are advised to be cautious of heavy rain and accumulated rainfall, which could lead to flash floods and forest runoff, especially in hilly areas, near waterways, and low-lying regions. The public is also encouraged to care for their health due to the rising temperatures.

In the upper Andaman Sea, moderate winds will create waves between 1 and 2 metres high, with areas experiencing thunderstorms seeing waves above 2 metres. Mariners are advised to avoid sailing in stormy regions.

The northern region will see thunderstorms in 40% of the area, primarily in Chiang Mai, Chiang Rai, Phayao, Nan, Tak, Phitsanulok, and Phetchabun. Temperatures will range from 24 to 27 degrees Celsius at night and reach 35 to 37 degrees Celsius during the day, with southwesterly winds blowing at 5 to 15 kilometres per hour.

Heavy rain

The northeastern region is expected to have thunderstorms in 60% of the area, with heavy rainfall in Nong Khai, Bueng Kan, Sakon Nakhon, Nakhon Phanom, and Mukdahan. Nighttime temperatures will be between 24 and 27 degrees Celsius, and daytime temperatures will peak at 34 to 37 degrees Celsius. Southwesterly winds will blow at 10 to 20 kilometres per hour.

The central region will experience thunderstorms in 40% of the area, especially in Nakhon Sawan, Uthai Thani, Kanchanaburi, Ratchaburi, and Saraburi. Temperatures will drop to 24 to 27 degrees Celsius at night and rise to 36 to 37 degrees Celsius during the day, with southwesterly winds at 10 to 20 kilometres per hour.

In the eastern region, thunderstorms will cover 40% of the area, mainly in Nakhon Nayok, Prachinburi, Rayong, Chanthaburi, and Trat. Nighttime temperatures will be between 25 and 28 degrees Celsius, with daytime highs of 33 to 36 degrees Celsius and southwesterly winds at 15 to 30 kilometres per hour. The sea will have waves of about 1 metre, increasing to more than 1 metre in stormy areas.

The southern region (eastern coast) will have thunderstorms in 60% of the area, with heavy rainfall in Songkhla, Pattani, Yala, and Narathiwat. Night temperatures will range from 24 to 27 degrees Celsius, and daytime highs will be 33 to 36 degrees Celsius. Southwesterly winds will blow at 15 to 30 kilometres per hour, with sea waves at about 1 metre, rising to more than 1 metre in stormy areas.

The southern region (western coast) will also see thunderstorms in 60% of the area, with heavy rain in Phang Nga, Phuket, Krabi, Trang, and Satun. Night temperatures will be between 24 and 26 degrees Celsius, and daytime highs will range from 32 to 34 degrees Celsius.

From Phuket northwards, southwesterly winds will blow at 15 to 35 kilometres per hour, with sea waves of 1 to 2 metres, rising above 2 metres in stormy areas. From Krabi southwards, southwesterly winds will be 15 to 30 kilometres per hour, with sea waves of about 1 metre, increasing to more than 1 metre in stormy areas, reported KhaoSod.

Bangkok and surrounding areas will see thunderstorms in 40% of the area, mainly from afternoon to evening. Night temperatures will range from 26 to 28 degrees Celsius, and daytime highs will be 34 to 37 degrees Celsius, with southwesterly winds blowing at 10 to 20 kilometres per hour.