The Royal Irrigation Department expects northern waters to flow into the Chao Phraya River to increase. From the rain that fell between 8-11 Oct., it was necessary to increase the water intake into the irrigation system on both sides, but it was still necessary to increase the water drainage volume through the Chao Phraya Dam to 1,500-1,800 cubic meters/second, which would result in the level The Chao Phraya River water downstream of the dam has risen 20-80 centimeters. ONWR warns 26 provinces and 4 river basins to watch out for flooding – flooding. and water overflows the banks between 9-15 Oct.
The Royal Irrigation Department informed that From following the water situation in the past, the monsoon trough has caused heavy rain to accumulate throughout Thailand. As a result, there is an increase in water in the river. It is also predicted that between 8 – 11 October 2023 there will be heavy to very heavy rain. This causes water to overflow the banks in low-lying areas along the river during 9 – 15 October 2023, especially the Chao Phraya River. It is predicted that there will be flooding from the upper areas of the basin. The Chao Phraya Dam requires water to be released at a rate of more than 1,500 cubic meters (cubic meters) per second.
The Royal Irrigation Department and related agencies have predicted that the water volume at Runoff Meter Station C.2, Nakhon Sawan Province, will have a flowing volume of approximately 1,800 – 1,900 cubic meters/second and have predicted the volume of water from the Sakae Krang River and its tributaries. will flow in approximately 200 – 300 cubic meters/second, which makes the water volume above the Chao Phraya Dam between 2,000 – 2,200 cubic meters/second.
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This has been managed by receiving water into the irrigation system on both sides of the Chao Phraya River at approximately 350 – 400 cubic meters/second, but there is still a need to adjust the amount of water flowing through the Chao Phraya Dam at the rate of 1,500 – 1,800 cubic meters. /second, which will cause the waterfront area to increase from the present by another 20 – 80 centimeters in the low-lying areas outside the water barriers around Khlong Pong Pheng, Ang Thong Province, Khlong Bang Ban, Phra Nakhon Si Ayutthaya Province, and Hua Wiang Subdistrict, Sena District, Lat Chit, Tha Din Daeng Subdistrict, Phak Hai District, Phra Nakhon Si Ayutthaya Province (Noi River) may affect community areas. If there is an increase in the amount of water above that will result in the amount of water flowing through the Chao Phraya Dam to be more than 1,800 cubic meters/second, we will inform you further.
To increase water drainage, the Royal Irrigation Department has issued a warning letter to 11 provinces in the Chao Phraya Basin, including Uthai Thani, Chainat, Sing Buri, Ang Thong, Suphan Buri, Phra Nakhon Si Ayutthaya, Lop Buri, Pathum Thani, Nonthaburi, Samut Prakan and Bangkok. along with the Department of Disaster Prevention and Mitigation (Disaster Prevention and Mitigation) and the Radio Broadcasting Station of Thailand Public relations warning about the water situation for people in the area to watch and follow the situation closely.
The National Water Resources Office (ONWR) has issued an announcement regarding monitoring of floods and landslides. and the water overflows the banks Because there will be heavy to very heavy rain in the northern region. Northeastern, Central, Eastern and Southern regions during 8 – 11 October 2023.
In this regard, ONWR has analyzed and predicted that there will be an increase in the amount of water. This results in overflowing the riverbanks in low-lying areas along the river, with areas at risk that must be monitored for flooding and landslides in a total of 26 provinces during the period 9 – 15 October 2023 as follows.
1. Northern region, 10 provinces include:
– Chiang Mai Province (Fang, Omkoi and Chom Thong districts)
– Kamphaeng Phet Province (Khlong Lan District, Khlong Khlung and Pang Sila Thong)
– Uttaradit Province (Tron District)
– Tak Province (Umphang District, Mae Sot, Mae Ramat, Phop Phra, Wang Chao and Ban Tak)
– Phayao Province (Mueang Phayao District)
– Phrae Province (Wang Chin District)
– Phitsanulok Province (Nakhon Thai District)
– Nakhon Sawan Province (Mae Wong District)
– Uthai Thani Province (Ban Rai and Lan Sak District)
– Phetchabun Province (Mueang Phetchabun District, Nong Phai and Nam Nao)
1.2 Northeastern region, 5 provinces include:
– Khon Kaen Province (Khok Pho Chai and Non Sila District)
– Nakhon Ratchasima Province (Mueang Nakhon Ratchasima District, Non Thai, Non Sung, Chaloem Phrakiat, Chakrat, Phimai, Lam Thamen Chai, Chum Phuang, and Mueang Yang)
– Chaiyaphum Province (Mueang Chaiyaphum District, Khon San and Kaset Sombun)
– Mukdahan Province (Kham Chai District and Mukdahan City), Udon Thani Province (Mueang Udon Thani District)
– Ubon Ratchathani Province (Mueang Ubon Ratchathani District and Warin Chamrap)
1.3 Central region, 3 provinces:
– Kanchanaburi Province (Thong Pha Phum District and Srisawat)
– Chainat Province (Mueang Chainat, Noen Kham and Hankha districts)
– Suphanburi Province (Doembang Nangbuat District, Nong Ya Sai, Sam Chuk and Don Chedi)
1.4 Eastern region, 5 provinces include:
– Prachinburi Province (Mueang Prachinburi District, Prachantakham, Si Maha Phot, Nadi and Kabinburi)
– Sa Kaeo Province (Mueang Sa Kaeo District)
– Chanthaburi Province (Mueang Chanthaburi District, Kaeng Hang Maeo, Khlung, Makham and Tha Mai)
– Trat Province (Mueang Trat District, Bo Rai, Khao Saming and Laem Ngop)
– Rayong Province (Pluak Daeng District)
1.5 Southern region, 3 provinces include:
– Narathiwat Province (Su-ngai Padi and Sukirin districts)
– Phang Nga Province (Khuraburi District)
– Ranong Province (Mueang Ranong and Kapoe Districts)
For areas that need to watch for water overflowing the banks in low-lying areas along the river as follows:
– Mun River includes Mueang Ubon Ratchathani, Warin Chamrap and Phibun Mangsahan districts. Ubon Ratchathani Province
– Chao Phraya River The affected area is Low-lying area outside the dike, Wat Chaiyo, Khlong Pong Pheng, Ang Thong Province. Phrom Buri District Mueang Singburi and Inburi Sing Buri Province, Khlong Bang Ban, Phra Nakhon Si Ayutthaya Province and Hua Wiang Subdistrict, Sena District, Lat Chit Subdistrict, Tha Din Daeng Subdistrict, Phak Hai District, Phra Nakhon Si Ayutthaya Province
– Tha Chin River includes Mueang Suphanburi District and two brothers Suphanburi Province Bang Len and Nakhon Chai Si District Nakhon Pathom Province
– Prachinburi River includes Kabin Buri District Prachinburi Province
ONCB urges relevant agencies to prepare for the situation as follows:
1. Prepare a plan for flood situations. Prepare personnel machinery tools
including the readiness of a backup communication system to integrate readiness to provide assistance immediately
2. Plan water management to be consistent with the situation. by adjusting the drainage plan
of the reservoir drainage dam and irrigation systems in order to delay water flowing down to join the main river as much as possible according to its potential in each period. including managing water traffic In order to reduce the impact of water that will flow into the Mun River area. and Chao Phraya River
3. Publicize the water situation and advance warning to the people who are expected to be affected Prepare to transport things to higher areas or evacuate in time if a situation arises.
Source: Thai News Agency