NASA Earth Observatory compared Landsat 8 and 9 imagery showing that persistent heavy rain and intense downpours in late September and early October left wide areas of Thailand under sustained flooding. On October 2, farmland and aquaculture along the Bang Pakong River in Prachin Buri were extensively inundated. Bangkok received nearly 300 millimeters in 48 hours, close to its 344-millimeter September monthly average. Citing Red Cross and government data, NASA says flooding since mid-September reached 50 provinces, affected more than 4 million people, caused dozens of deaths and damaged about 270,000 hectares of farmland. National totals guide relief allocation, but local action still depends on current warnings.