Patna sits directly on the banks of the Ganges in Bihar, one of the most flood-exposed major cities in India, where the June-to-September monsoon combines with the river’s own seasonal rise to produce recurring flood risk in low-lying riverside neighborhoods. Because Patna’s flooding is often driven by rainfall far upstream across the wider Ganges basin rather than local rain alone, regional radar coverage is an important part of how flood risk gets tracked here each monsoon season.
Learn more: Flash Flood Warning Signs on Radar · Open the full Rain Map