Heavy rains and floods predicted for 36 Thai provinces
Monsoon trough and strong winds brings rain and rough seas
The Thai Meteorological Department has forecast heavy rainfall across 36 provinces today, August 15, including Bangkok, with the potential for flash floods, strong winds, and rough seas.
Today’s weather forecast indicates that the eastern and western southern regions will experience very heavy rain in some areas. Northern, northeastern, central, and eastern southern regions are expected to see heavy rain in certain locations.
This weather pattern is influenced by a monsoon trough extending over upper northern Thailand into a low-pressure area in northern Vietnam, combined with a strengthening southwest monsoon over the Andaman Sea, Thailand, and the Gulf of Thailand.
The Andaman Sea is expected to experience strong winds, with waves reaching 2-3 metres in the upper Andaman Sea and higher than 3 metres in stormy areas. In the Gulf of Thailand and lower Andaman Sea, waves will be around 2 metres, exceeding 2 metres in thunderstorm regions.
Regional updates
The northern region is projected to have thunderstorms covering 60% of the area, with heavy rain in provinces like Nan, Phrae, Uttaradit, Phitsanulok, and Phetchabun. Temperatures will range from 23 to 26 degrees Celsius (°C) with highs of 32 to 35°C. Winds from the southwest will blow at 10 to 15 kilometres an hour (km/h).
In the northeast, thunderstorms are expected to cover 70% of the area, with heavy rain in Loei, Nong Khai, Bueng Kan, Nong Bua Lam Phu, Udon Thani, Sakon Nakhon, Chaiyaphum, Khon Kaen, and Nakhon Ratchasima. Temperatures will range from 23 to 25°C with highs of 32 to 34°C. Winds will be from the southwest at 10 to 20 km/h.
The central region will have thunderstorms in 60% of the area, with heavy rain in provinces like Nakhon Sawan, Sing Buri, Ang Thong, Lopburi, Saraburi, Phra Nakhon Si Ayutthaya, Kanchanaburi, and Ratchaburi. Temperatures will range from 25 to 26°C, with highs of 34 to 36°C. Southwest winds will blow at 10 to 20 km/h.
In the eastern region, 70% of the area will experience thunderstorms, with very heavy rain in some locations such as Nakhon Nayok, Prachin Buri, Chachoengsao, Rayong, Chanthaburi, and Trat. Temperatures will range from 23 to 27°C with highs of 31 to 35°C. Winds will be from the southwest at 20 to 35 km/h, with waves reaching 2 metres or higher in stormy areas.
The southern region (eastern coast) will have thunderstorms in 60% of the area, with heavy rain in Prachuap Khiri Khan, Chumphon, Surat Thani, and Nakhon Si Thammarat. Temperatures will range from 23 to 25°C, with highs of 33 to 35°C. Winds from the southwest will blow at 20 to 35 km/h, with waves reaching 1 to 2 metres and higher offshore.
On the southern region’s western coast, 70% of the area will experience thunderstorms, with very heavy rain in some areas like Ranong, Phangnga, Phuket, and Krabi. Temperatures will range from 24 to 27 degrees Celsius, with highs of 28 to 33 degrees Celsius. Winds in Phuket and above will be from the southwest at 20 to 40 km/h, with waves reaching 2 to 3 metres and higher in stormy areas.
South of Krabi, winds will be from the southwest at 20 to 35 km/h, with waves around 2 metres, higher in thunderstorms.
Bangkok and its vicinity will see thunderstorms in 60% of the area, with heavy rain in some locations. Temperatures will range from 26 to 27 degrees Celsius, with highs of 34 to 36 degrees Celsius. Southwest winds will blow at 10 to 20 km/h.
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