TMD warns of flash floods as monsoon rains sweep Thailand
Stormy skies and rough seas forecast across multiple Thai regions
Thailand is in for a soggy 24 hours as monsoon conditions sweep across the country, bringing thundershowers, gusty winds, and rough seas. The Thai Meteorological Department (TMD) has issued warnings for flash flooding, stormy seas and travel disruptions.
The monsoon trough has now shifted to lie across central and eastern Thailand, while the southwest monsoon continues to prevail over the Andaman Sea, the South and the Gulf of Thailand. These combined systems are bringing unstable weather conditions throughout the kingdom.
The weather forecast for 6am today, October 9, to 6am tomorrow, October 10, is as follows:
The North of Thailand will see isolated thundershowers, particularly in provinces such as Mae Hong Son, Chiang Mai, Tak, Kamphaeng Phet, Phitsanulok, Phichit, and Phetchabun. Morning temperatures are expected to drop to between 22 and 26°C, while daytime highs will range from 32 to 35°C. Winds across the northern region will be light, blowing easterly at speeds of 5 to 15 kilometres per hour.
In the Northeast, scattered thunderstorms are forecast across Chaiyaphum, Khon Kaen, Maha Sarakham, Nakhon Ratchasima, Buriram, and Surin. Minimum temperatures will range from 22 to 25°C, with highs reaching between 32 and 34°C. Winds will come from the east at around 10 to 20 km/h.
The central region, including Kanchanaburi, Phra Nakhon Si Ayutthaya, Ratchaburi, Nakhon Pathom, Samut Songkhram, and Samut Sakhon, will experience fairly widespread thundershowers, with the possibility of isolated heavy rainfall. Minimum temperatures are forecast to fall between 21 and 25°C, while maximum temperatures are expected to climb to 32 to 34°C. Winds in this area will be variable, moving at speeds of 10 to 20 km/h.
The East, including provinces such as Nakhon Nayok, Prachin Buri, Chachoengsao, Chon Buri, Rayong, Chanthaburi, and Trat, is expected to see widespread thundershowers with isolated heavy rain. Temperatures will range from 23 to 25°C in the morning and 31 to 34°C during the day. Variable winds are expected at speeds between 15 and 30 km/h. Sea conditions will remain moderate, with wave heights around 1 metre, increasing to over 2 metres during thundershowers.
Along the east coast of the South, scattered thundershowers and isolated heavy rainfall are likely in Surat Thani, Nakhon Si Thammarat, Songkhla, Pattani, and Narathiwat. Morning temperatures will range from 22 to 24°C, and maximum temperatures will reach between 32 and 34°C. Winds will be southwesterly at 15 to 30 km/h. The Gulf of Thailand will see wave heights of about 1 metre, rising above 2 metres during storms.
On the west coast, including Ranong, Phang Nga, Phuket, Trang, and Satun, will see scattered thundershowers. Minimum temperatures are forecast between 23 and 25°C, with maximum temperatures ranging from 30 to 32°C. Winds will also be southwesterly at speeds of 15 to 30 km/h. The Andaman Sea will be choppy, with wave heights around 1 metre, exceeding 2 metres during thundershowers.
The Bangkok Metropolitan Region is expected to face fairly widespread thundershowers with isolated heavy rain. Morning temperatures will fall between 24 and 26°C, with highs reaching 33 to 35°C. Variable winds will blow at speeds of 10 to 20 km/h, according to the TMD.
The TMD has issued a caution for all marine vessels in the Gulf and Andaman Sea, urging boats to proceed carefully and avoid areas affected by thunderstorms, as waves could rise above 2 metres in stormy conditions.
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