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Thailand Braces for Heavy Rainfall and Flash Floods

  • 2 weeks ago
  • Blog
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Thailand cityscape under heavy rain clouds with flash floods warning.

Heavy rainfall is expected across Thailand, with over 60% coverage in all regions, including Bangkok. The Meteorological Department of Thailand (TMD) has issued warnings for potential flash floods and forest runoff due to the intense weather conditions. Residents are advised to exercise caution and stay informed about the latest weather updates.

Key Takeaways

  • Heavy rainfall expected across Thailand, including Bangkok.
  • Potential for flash floods and forest runoff.
  • Strong winds and high waves in the Andaman Sea and Gulf of Thailand.
  • Residents advised to stay informed and exercise caution.

Weather Forecast and Warnings

The TMD has forecasted that the southwest monsoon covering the Andaman Sea, Thailand, and the Gulf of Thailand is relatively strong. This, combined with a monsoon trough passing through northern Thailand and upper Laos, leading to a low-pressure area over northern Vietnam, is causing significant rainfall in many areas of the country.

Thailand will experience heavy to very heavy rainfall in several regions, particularly in the north, northeast, east, and western parts of the south. Residents in these areas are advised to be cautious of the dangers posed by heavy and accumulated rainfall, which could result in sudden flooding and flash floods, especially in foothill areas near waterways and lowland regions.

Regional Updates

Northern Region

  • Thunderstorms expected in 80% of the area.
  • Heavy to very heavy rainfall in places like Mae Hong Son, Chiang Mai, Chiang Rai, Lamphun, Lampang, Phayao, Nan, Uttaradit, Kamphaeng Phet, Phichit, Phitsanulok, Phetchabun, and Tak.
  • Temperatures: 23-26°C (min), 32-35°C (max).
  • Southwest wind: 10-20 km/h.

Northeastern Region

  • Thunderstorms expected in 80% of the area.
  • Heavy to very heavy rainfall in places like Loei, Nong Khai, Bueng Kan, Nong Bua Lamphu, Udon Thani, Sakon Nakhon, Nakhon Phanom, Mukdahan, Khon Kaen, Nakhon Ratchasima, Roi Et, Yasothon, Amnat Charoen, Sisaket, and Ubon Ratchathani.
  • Temperatures: 23-25°C (min), 30-33°C (max).
  • Southwest wind: 10-20 km/h.

Central Region

  • Thunderstorms expected in 60% of the area.
  • Heavy rainfall in places like Nakhon Sawan, Uthai Thani, Chai Nat, Kanchanaburi, Ratchaburi, Lop Buri, and Saraburi.
  • Temperatures: 24-26°C (min), 32-35°C (max).
  • Southwest wind: 10-25 km/h.

Eastern Region

  • Thunderstorms expected in 70% of the area.
  • Heavy to very heavy rainfall in places like Nakhon Nayok, Prachin Buri, Sa Kaeo, Chachoengsao, Chanthaburi, and Trat.
  • Temperatures: 24-28°C (min), 28-34°C (max).
  • Southwest wind: 20-35 km/h.
  • Sea waves: 2 metres, higher in stormy areas.

Southern Region (East Coast)

  • Thunderstorms expected in 60% of the area.
  • Heavy rainfall in places like Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, Nakhon Si Thammarat, and Phatthalung.
  • Temperatures: 23-27°C (min), 31-34°C (max).
  • Southwest wind: 20-35 km/h (Surat Thani upwards), 15-35 km/h (Nakhon Si Thammarat downwards).
  • Sea waves: 2 metres, higher in stormy areas.

Southern Region (West Coast)

  • Thunderstorms expected in 70% of the area.
  • Heavy to very heavy rainfall in places like Ranong, Phang Nga, Phuket, and Krabi.
  • Temperatures: 23-25°C (min), 29-32°C (max).
  • Southwest wind: 20-40 km/h (Phang Nga upwards), 15-35 km/h (Phuket downwards).
  • Sea waves: 2-3 metres, higher in stormy areas.

Bangkok and Vicinity

  • Thunderstorms expected in 60% of the area.
  • Heavy rainfall in some places.
  • Temperatures: 26-28°C (min), 32-35°C (max).
  • Southwest wind: 10-25 km/h.

Safety Measures and Recommendations

Residents in high-risk areas are urged to stay informed about weather conditions and official updates. The public can access hazard alerts through various applications and platforms. Mariners should exercise caution and avoid sailing in areas with thunderstorms. Small boats in the upper Andaman Sea are advised to remain ashore.

Authorities have been instructed to monitor natural tourist attractions like caves and waterfalls closely. If heavy rainfall poses a risk, provincial governors are authorised to issue warnings and close off these areas to the public entirely.

For coastal areas under strong wind alerts, authorities are advised to issue warnings or install signal flags to alert the public and tourists against swimming in the sea during periods of strong winds.

Sources

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Gaël Ovide-Etienne
Gaël oversees all marketing efforts for Ocean Worldwide. He manages marketing campaigns to connect with prospective buyers, conducts research and market analysis, and leverages AI to enhance all aspects of the business. This approach ensures better and faster results for our buyers and sellers.

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