I remember the floods in Sakon Nakhon 4 years ago. The worse flooding in 2 decades. When I searched areas to buy land to build a house, I made sure it wasn’t in a low lying area around the city.
The rains lasted for many days as a result caused a breach in the reservoir ,that flooded the city and the villages around it.
Many of Thailand’s provinces will be susceptible to floods because of poor drainage and natural conditions imop.