Bangkok: The government has issued a warning for 12 provinces to remain vigilant in light of anticipated heavy rainfall and possible flash floods. The Meteorological Department has forecasted a 60-70% likelihood of rain in the northern and northeastern regions from August 10-16. Additionally, the Royal Irrigation Department has been instructed to prepare for immediate public assistance.
According to Thai News Agency, Lieutenant Colonel Patthadarasmi Thongsalooykorn, Deputy Spokesperson for the Prime Minister's Office, stated that the government is closely monitoring the rainfall and water conditions as Thailand experiences significant rainfall, particularly in the North and Northeast. The Royal Irrigation Department has been directed to ready machinery, water pumps, equipment, and personnel for immediate public assistance in case of flooding.
The Royal Irrigation Department reports that a monsoon trough over the northern regions of Thailand and Laos, combined with a strong southwest monsoon, necessitates heightened vigilance due to heavy and prolonged rainfall. This situation could lead to flash floods, landslides, and river overflows, especially in hillside areas, near waterways, and low-lying regions.
The Meteorological Department predicts that from August 10-16, 2026, thunderstorms will affect 60-70% of the northern and northeastern regions, with some areas experiencing heavy rain throughout the period. The central region is expected to have thunderstorms covering 40-60% of the area, while the eastern region will see 60-70% thunderstorm coverage from August 10-11, decreasing to 40-60% from August 12-16. Heavy rainfall in specific areas remains a concern.
The provinces requiring special monitoring include Chiang Rai, Chiang Mai, Mae Hong Son, Nan, Mukdahan, Saraburi, Roi Et, Yasothon, Nakhon Phanom, Udon Thani, Phitsanulok, and Amnat Charoen. Authorities have been instructed to continuously assess the situation, evaluate the impact, and prepare the necessary equipment for assistance in high-risk areas.
Regarding the Chao Phraya River basin, the Royal Irrigation Department is closely monitoring upstream water levels and rainfall to manage water resources effectively and minimize downstream impact.
Captain Patthadarasmi advised residents in monitored areas, especially those in low-lying regions near rivers, on hillsides, and areas prone to recurrent flooding, to follow official warnings closely. In the event of continued heavy rain or rising water levels, they should prepare to move belongings, tools, and agricultural equipment to higher ground and be ready for any situation in advance.
The Royal Irrigation Department will maintain continuous monitoring of the water and weather conditions, coordinating with relevant agencies to provide timely assistance to those in vulnerable areas to prevent and mitigate the effects of heavy rainfall and flooding as much as possible.