Between late June and early August 2026, the region of Upper Assam (specifically the primary districts of Sivasagar, Charaideo, and Jorhat) and the surrounding hill catchments of Nagaland and Arunachal Pradesh in Northeast India witnessed multiple spells of heavy to extremely heavy rainfall that triggered repeated waves of flash flooding and widespread inundation across the region.
An initial spell of intense rainfall around 28 June 2026 triggered a first wave of flooding, affecting more than 22,000 people across six districts and causing early infrastructure failures (The News Mill, 2026; ANI, 2026; Hindustan Times, 2026). A second and more severe period of heavy rainfall between 18 and 21 July inundated 16 districts and 794 villages, with floodwaters persisting through late July and into early August…
Source: World Weather Attribution
World Weather Attribution
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