Tropical Storm Vipa to Bring Heavy Rain and Flood Risk to Northern and Central Thailand
BANGKOK — Northern and central parts of Thailand are expected to face heavy to very heavy rainfall from Tuesday, July 22, to Thursday, July 24, 2025, as Tropical Storm Vipa advances toward mainland Southeast Asia. The storm, currently heading toward southern China, is forecast to move over Tonkin Bay and into northern Vietnam before weakening into a tropical depression and then a low-pressure system over Laos, according to the Thai Meteorological Department.
Authorities are warning residents in affected provinces—particularly Nan, Phayao, and Chiang Rai in the north—to prepare for potential evacuations, as intensified rainfall may trigger flash floods and landslides. Weather officials noted that the storm is likely to gain strength as it approaches, increasing the risk of severe weather in the northern, northeastern, and western central regions of Thailand.
Communities near mountainous areas and rivers, including in Chanthaburi, Trat, Ranong, and Phang-nga, have been urged to stay alert for rapid water surges and possible flooding. The Department also cautioned residents in low-lying zones to remain vigilant throughout the week.
Maritime authorities have issued advisories for small boats to avoid setting sail in the Gulf of Thailand and the Andaman Sea due to strong winds and rough seas. Fishermen and boat operators are encouraged to monitor official weather updates closely and comply with local safety orders.
Meanwhile, Bangkok and surrounding provinces may also experience increased rainfall during this period, though not as intensely as in the northern regions. Officials are urging the public to follow developments and emergency instructions from local authorities as conditions evolve.