The Nagaland State Disaster Management Authority (NSDMA) has warned of active monsoon conditions across Nagaland from August 18-21, 2026, with light to moderate rainfall, localized thunderstorms, and lightning expected at several places.
According to the NSDMA forecast, light to moderate rainfall is likely at a few places in Longleng and Phek on August 18, while thunderstorms and lightning are expected over Dimapur and Peren. On August 19, similar activity is likely over Longleng, Mokokchung, Mon, Peren, and Shamator. Thunderstorm activity is expected to intensify on August 20, with light to moderate rainfall at scattered locations in Longleng, Mokokchung, Mon, Tseminyu, Tuensang, and Zunheboto.
On August 21, thunderstorms, lightning, and light to moderate rainfall are likely at scattered locations, particularly in Chümoukedima, Kiphire, Longleng, Mokokchung, Mon, Tseminyu, Tuensang, Wokha, and Zunheboto. The four-day cumulative rainfall forecast puts Longleng highest at 81.15 mm, followed by Mokokchung (59.85 mm), Peren (51.72 mm), Tuensang (50.67 mm), Mon (47.26 mm), Wokha (46.78 mm), and Tseminyu (43.98 mm).
The NSDMA has cautioned that thunderstorms may bring lightning and brief gusty winds, along with localized waterlogging, slippery roads, and reduced visibility. Residents in landslide-prone and other vulnerable areas were advised to remain vigilant, especially where rainfall has been recurring.
