Thailand braces for heavy rain and potential flash floods
Residents brace for floods and landslides as storms sweep across provinces
The Thai Meteorological Department (TMD) has forecasted significant weather changes for the upcoming week, with heavy rainfall expected to affect 80% of the country.
The weather from September 2 to September 8 will see monsoons impacting lower north Thailand, lower northeastern regions, central areas including Bangkok and its vicinity, the east, and the south. This is due to the monsoon trough sliding across the central, eastern, and lower northeastern regions. The southwest monsoon over the Andaman Sea, Thailand, and the Gulf of Thailand is predicted to weaken to a moderate level.
From September 7 to September 8, Thailand will continue to experience heavy rainfall, especially in the east, as the monsoon trough shifts over the north and northeast. The southwest monsoon covering the Andaman Sea and the Gulf of Thailand will remain at a moderate intensity.
Today, September 3, strong wind waves are expected in the upper Andaman Sea, with waves 2 to 3 metres and over 3 metres in areas with thunderstorms. Moderate winds and waves are anticipated in the lower Andaman Sea and the upper Gulf of Thailand, with waves around 2 metres and above 2 metres in stormy areas.
From September 4 to September 8, the Andaman Sea and the Gulf of Thailand will see moderate winds, with the upper Andaman Sea experiencing wave heights of about 2 metres, while the lower Andaman Sea and the upper Gulf of Thailand will have waves ranging from 1 to 2 metres, exceeding 2 metres in stormy areas.
Residents, particularly in the eastern and western southern regions, are advised to exercise caution due to potential hazards from heavy and accumulated rainfall, which could lead to flash floods and forest runoffs, especially in hilly areas near watercourses and low-lying areas. Mariners should navigate carefully and avoid sailing in thunderstorm-prone areas throughout this period, with small boats in the upper Andaman Sea advised to remain ashore until today, September 3.
Weather forecasts
In the north, thunderstorms are expected in 40 to 60% of the area throughout the period, with heavy rains in some lower parts. Winds will be variable with speeds of 5 to 15 kilometres per hour. Temperatures will range from a minimum of 21 to 25 degrees Celsius to a maximum of 30 to 35 degrees Celsius.
The northeast will see thunderstorms covering 60 to 70% of the area, with heavy rains in some lower parts. Wind speeds will be 10 to 20 kilometres per hour, with temperatures ranging from 22 to 26 degrees Celsius to 29 to 34 degrees Celsius.
In the central region, 60 to 80% of the area will experience thunderstorms throughout the period, with some parts receiving heavy rain. Southwest winds will blow at 10 to 20 kilometres per hour, with temperatures between 23 and 26 degrees Celsius and 30 and 35 degrees Celsius.
The east will experience thunderstorms in 60-80% of the area, with very heavy rain expected in some places on September 7 and September 8. Early in the period, southwest winds will reach 20 to 35 kilometres per hour, with sea waves about 2 metres high, exceeding 2 metres in thunderstorm areas.
From September 4 to September 8, the winds will slow to 15 to 35 September, with sea waves of 1 to 2 metres, exceeding 2 metres in stormy areas. Temperatures will range from 23 to 28 degrees Celsius to 28 to 35 degrees Celsius.
In the south (eastern coast), 40 to 60% of the area will have thunderstorms, with heavy rain in some parts on September 6 and September 7. During the start of the period, southwest winds will reach 20 to 35 kilometres per hour, with sea waves of 1 to 2 metres, exceeding 2 metres in stormy areas.
From September 4 to September 8, winds will be 15 to 35 kilometres per hour, with sea waves about 1 metre high, rising to 1 metre offshore. Temperatures will range from 22 to 26 degrees Celsius to 30 to 35 degrees Celsius.
The south (western coast) will have thunderstorms in 60 to 80% of the area, with heavy rain throughout the period. From September 2 to September 3, areas from Phuket northwards will experience southwest winds of 20 to 40 kilometres per hour, with sea waves of 2 to 3 metres, exceeding 3 metres in stormy areas.
From Krabi southwards, winds will be 20 to 35 kilometres per hour, with sea waves about 2 metres, exceeding 2 metres in stormy areas. From September 4 to 8, areas from Phang Nga northwards will have winds of 20 to 35 kilometres per hour, with sea waves of about 2 metres, exceeding 2 metres in stormy areas.
From Phuket southwards, winds will be 15 to 35 kilometres per hour, with sea waves of 1 to 2 metres, exceeding 2 metres in stormy areas. Temperatures will range from 23 to 27 degrees Celsius to 28 to 33 degrees Celsius.
Bangkok and its vicinity will experience thunderstorms in 60 to 80% of the area throughout the period, with heavy rain in some parts. Southwest winds will be 10 to 20 kilometres per hour, with temperatures ranging from 24 to 28 degrees Celsius to 30 to 35 degrees Celsius, reported KhaoSod.
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