Overview
- The East Coast severe‑weather event is unfolding Monday with watches and outlooks covering roughly 80 million people from northern Georgia to Maine and threats focused on damaging straight‑line winds, large hail, frequent lightning and isolated tornadoes.
- Regional U.S. forecasts caution that a slow‑moving frontal boundary will keep scattered storms and midweek rounds possible, with training cells and saturated ground raising the risk of localized flash flooding and downed trees from strong gusts.
- India’s India Meteorological Department reported on Monday that the southwest monsoon is advancing and has issued forecasts of isolated heavy to very heavy rain for Arunachal Pradesh, Assam, Meghalaya and Sub‑Himalayan West Bengal and Sikkim, which could cause local flooding and landslides.
- The IMD also issued a red alert for Delhi‑NCR for thunderstorms, gusty winds and heavy rain that have already disrupted commutes and public transit in parts of the capital region.
- Heat and humidity are amplifying hazards in the U.S. Southeast where heat‑index values are expected above 100°F, and authorities say compounded effects — saturated soils in New England and steep terrain in northeast India — increase the chance of travel disruption, power outages and short‑term flood damage in populated corridors.