22 major dams across Thailand hold water volumes exceeding 81%, nearing or surpassing full capacity as of 7 Nov 2025 GMT+7.
Today (7 Nov 2025 GMT+7) The Meteorological Department forecasted that heavy to very heavy rain with strong winds will affect the Northeast region, especially in Roi Et, Maha Sarakham, Sisaket, Surin, and Buriram provinces.
Meanwhile, the North, Central, East regions, including Bangkok and its vicinity, will experience heavy rain in some areas due to the influence of the tropical depression “Kalmaegi” (KALMAEGI), which has moved to cover Ubon Ratchathani province and is expected to weaken into a strong low-pressure area soon.
Residents in those areas are advised to be cautious of heavy to very heavy rainfall and accumulated rain that may cause flash floods, forest runoff, and riverbank overflows, especially in foothill areas, near water flow paths, lowlands, and flood-prone zones.
Meanwhile, the Royal Irrigation Department reported the latest water situation in reservoirs: water volume stands at 68,685 million cubic meters, or 90% capacity, with an additional capacity to receive 7,885 million cubic meters. Among 35 major reservoirs nationwide, 22 have water volumes exceeding 81%, as follows:
1. Khuean Khao Khama Dam (108%) Mueang District, Lampang Province
Water volume is 184.66 million cubic meters from a capacity of 170 million cubic meters; usable water volume is 178.46 million cubic meters.
2. Mae Mok Dam (104%) Then District, Lampang Province
Water volume is 115.18 million cubic meters from a capacity of 110 million cubic meters; usable water volume is 99.28 million cubic meters.
3. Nong Pla Lai Dam (103.6%) Pluak Daeng District, Rayong Province
Water volume is 169.72 million cubic meters from 163.75 million cubic meters capacity; usable water volume is 156.22 million cubic meters.
4. Mae Ngat Somboon Chon Dam (103.2%) Mae Taeng District, Chiang Mai Province
Water volume is 273.67 million cubic meters from a capacity of 265 million cubic meters; usable water volume is 261.67 million cubic meters.
5. Pasak Chonlasit Dam (102%) Phatthana Nikhom District, Lopburi Province
Water volume is 981.33 million cubic meters from a capacity of 960 million cubic meters; usable water volume is 978.33 million cubic meters.
6. Naruebodindra Dam (100.8%) Nadi District, Prachinburi Province
Water volume is 297.4 million cubic meters from 295 million cubic meters capacity; usable water volume is 283.15 million cubic meters.
7. Kwan Noi Bamrung Dan Dam (100.6%) Wat Bot District, Phitsanulok Province
Water volume is 945.12 million cubic meters from a capacity of 939 million cubic meters; usable water volume is 908.12 million cubic meters.
8. Bhumibol Dam (98.16%) Sam Ngao District, Tak Province
Water volume is 13,213.64 million cubic meters from a capacity of 13,462 million cubic meters; usable water volume is 9,413.64 million cubic meters.
9. Huai Luang Dam (100.8%) Mueang District, Udon Thani Province
Water volume is 129.65 million cubic meters from a capacity of 135.57 million cubic meters; usable water volume is 123.06 million cubic meters.
10. Prasae Dam (100%) Wang Chan District, Rayong Province
Water volume is 294.99 million cubic meters from a capacity of 295 million cubic meters; usable water volume is 274.99 million cubic meters.
11. Bang Phra Dam (99.85%) Si Racha District, Chonburi Province
Water volume is 116.83 million cubic meters from a capacity of 117 million cubic meters; usable water volume is 104.77 million cubic meters.
12. Chulabhorn Dam (99.17%) Khon San District, Chaiyaphum Province
Water volume is 162.64 million cubic meters from a capacity of 164 million cubic meters; usable water volume is 125.64 million cubic meters.
13. Khun Dan Prakan Chon Dam (99.13%) Mueang District, Nakhon Nayok Province
Water volume is 222.04 million cubic meters from a capacity of 224 million cubic meters; usable water volume is 217.52 million cubic meters.
14. Sirikit Dam (97.35%) Tha Pla District, Uttaradit Province
Water volume is 9,258.38 million cubic meters from a capacity of 9,510 million cubic meters; usable water volume is 6,408.38 million cubic meters.
15. Lam Pao Dam (94.71%) Mueang District, Kalasin Province
Water volume is 1,875.23 million cubic meters from a capacity of 1,980 million cubic meters; usable water volume is 1,775.23 million cubic meters.
16. Ubolratana Dam (93.48%) Ubolratana District, Khon Kaen Province
Water volume is 2,272.39 million cubic meters from a capacity of 2,431 million cubic meters; usable water volume is 1,691.39 million cubic meters.
17. Mae Kuang Udom Thara Dam (93.21%) Doi Saket District, Chiang Mai Province
Water volume is 245.22 million cubic meters from a capacity of 263 million cubic meters; usable water volume is 231.22 million cubic meters.
18. Sirindhorn Dam (93.415%) Sirindhorn District, Ubon Ratchathani Province
Water volume is 1,831.29 million cubic meters from a capacity of 1,966 million cubic meters; usable water volume is 999.91 million cubic meters.
19. Nam Oon Dam (92.43%) Phang Khon District, Sakon Nakhon Province
Water volume is 480.63 million cubic meters from a capacity of 520 million cubic meters; usable water volume is 435.63 million cubic meters.
20. Vajiralongkorn Dam (90.82%) Thong Pha Phum District, Kanchanaburi Province
Water volume is 8,046.61 million cubic meters from a capacity of 8,860 million cubic meters; usable water volume is 5,034.61 million cubic meters.
21. Srinagarind Dam (90.82%) Si Sawat District, Kanchanaburi Province
Water volume is 15,627.29 million cubic meters from a capacity of 17,745 million cubic meters; usable water volume is 5,362.29 million cubic meters.
22. Khuean Lom Dam (85.46%) Mueang District, Lampang Province
Water volume is 90.78 million cubic meters from a capacity of 106.22 million cubic meters; usable water volume is 87.23 million cubic meters.
Source: Royal Irrigation Department