Northeast India sees rise in extreme one-day rainfall, study reveals
Northeast India sees rise in extreme one-day rainfall, study reveals
IN · Published Sep 20, 2026
A 52-year study conducted by the India Meteorological Department (IMD) and the National Centre for Medium Range Weather Forecasting (NCMRWF) has identified significant changes in rainfall patterns across Northeast India.
The research, published in the International Journal of Climatology, analysed data from 1971 to 2022 and found a statistically significant increase in intense one-day rainfall events in the region.

Impact & Risks

The changing rainfall patterns in Northeast India pose significant risks to the region's agriculture, infrastructure, and communities. Intense one-day downpours can lead to flash floods, landslides, and damage to roads and buildings, particularly in the mountainous areas. Conversely, prolonged dry spells can result in soil moisture depletion, water scarcity, and stress for farmers, even in years with adequate overall monsoon rainfall. These extremes highlight the need for comprehensive disaster preparedness and sustainable water management strategies to mitigate the dual risks of flooding and drought.

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