Overview
- A broad heat dome is producing sustained triple‑digit temperatures and heat‑index readings near 100–110°F across much of the central United States, placing roughly 70 million people under local heat advisories and warnings.
- Forecasters said Saturday that unusually warm nights will limit recovery from daytime heat, which increases the risk of heat illness for older people, young children and those with medical conditions.
- National and local weather centers warned the heat will coexist with increasing thunderstorm and severe‑weather potential as fronts and added moisture interact in parts of the Plains and Midwest, raising flood and wind risks.
- In the UK, yellow heat‑health alerts cover parts of England this weekend and model guidance shows a strong chance of a fourth heatwave next week with localized highs near 35°C, prompting hosepipe bans and public‑health precautions.
- Prolonged heat and dryness in Europe have driven large wildfires and mass evacuations in France and Spain, and authorities have opened cooling centers and readied power and health services to cope with the cumulative strain from repeated heat episodes this summer.