Areas and localities in Guwahati city submerged underwater after a night of incessant rainfall (Photo: AT)
The kind of flooding experienced by Guwahati on April 19, 2026, can be described as a pluvial flood event triggered by multiple factors.
Although the city recorded 117.4 mm of rainfall in 24 hours- considered relatively normal - most localities, including Rukminigaon, Nabin Nagar, Juripar, Hatigoon and Anil Nagne, were inundated.
These areas are traditionally low-lying tracts where paddy was once cultivated. Several additional factors have contributed simultaneously to the crisis.
Flash floods in Guwahati have become a regular monsoon phenomenon, and successive governments have failed to address this perennial problem effectively.
Studies of rain-fall data over the past decade indicate that while the total annual rain-fall has not increased significantly, the intensity of rainfall events has risen sharply:
Pluvial flooding refers to flooding caused by excessive rainfall over a short duration, when the ground can-not absorb water effectively and the city's drainage system fails to discharge the runoff adequately.
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