November 3: Thailand braces for heavy rainfall across 34 provinces
Thailand’s Meteorological Department (TMD) issued a fresh weather alert today, November 3, warning of heavy rainfall across 34 provinces. Bangkok and surrounding areas are set to bear the brunt, with 70% of the capital expected to be hit by thunderstorms and isolated heavy rain.
The current weather system is being driven by a strong monsoon trough crossing central and eastern Thailand and the lower Northeast. It’s converging with a powerful low-pressure cell off central Vietnam, while a weakening high-pressure system remains over northern Thailand, fuelling the unstable conditions.
Regional updates
In the northern region, the morning will be cool with thunderstorms expected in 60% of the area. Heavy rainfall is likely in Mae Hong Son, Tak, Sukhothai, Kamphaeng Phet and Phichit. Temperatures will range between 21 and 24 degrees Celsius (°C) in the morning and rise to 28 to 32°C in the afternoon. Mountain areas will see lows of 10 to 14°C. Winds from the southeast will blow at speeds of 10 to 15 kilometres per hour (km/h).
The northeast will also see changing conditions, with 40% of the region expecting thunderstorms. Rain is forecast in Mukdahan, Yasothon, Amnat Charoen, Nakhon Ratchasima, Si Sa Ket and Ubon Ratchathani. Morning lows will range from 21 to 24°C, climbing to 28 to 31°C in the daytime. On the mountaintops, temperatures could drop to between 14 and 18°C. Winds will come from the east at 10 to 20 km/h.
In the central region, 70% of the area will be affected by thunderstorms, with downpours expected in Nakhon Sawan, Uthai Thani, Chai Nat, Suphan Buri, Ayutthaya, Kanchanaburi, Ratchaburi, Nakhon Pathom, Samut Sakhon and Samut Songkhram. Temperatures will drop to 22 to 24°C in the morning, rising to 30 to 32°C during the day. Winds will be variable, blowing at 10 to 20 km/h.
The eastern region will see similar conditions, with 70% of the area forecast to experience rain, including heavy showers in Chachoengsao, Chon Buri, Rayong, Chanthaburi and Trat. Morning temperatures will be between 24 and 25°C, with highs of 30 to 33°C. Winds will be variable, ranging from 15 to 30 km/h. Seas will have waves of around one metre, increasing to over two metres during thunderstorms.
On the east coast of the south, 60% of the region will be hit by thunderstorms, with heavy rain expected in Phetchaburi, Prachuap Khiri Khan, Pattani, Yala and Narathiwat. Temperatures will fall to between 23 and 25°C in the early morning and climb to 30 to 34°C in the afternoon. Westerly winds will blow at 15 to 30 km/h. Waves will reach around one metre, increasing to over two metres during storms.
The west coast of the south will also face thunderstorms in 60% of the area, especially in Ranong and Phang Nga. From Phuket northward, southwesterly winds will blow at 15 to 35 km/h, with sea waves of 1 to 2 metres and over 2 metres during storm activity. South of Krabi, the winds will be slightly lighter at 15 to 30 km/h, with wave heights around one metre, increasing in thunderstorm areas.
Bangkok and nearby provinces are forecast to see thunderstorms in 70% of the area, with isolated heavy rain. Morning temperatures will be around 24 to 25°C, climbing to 31 to 32°C during the day. Winds will be variable at 10 to 20 km/h.
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