Overview
- A large heat dome is parked over central and eastern U.S. and parts of Canada, with heat‑index forecasts reaching roughly 111°F in some host‑area cities.
- The U.S. National Weather Service and Environment and Climate Change Canada have issued extreme‑heat watches and warnings covering multiple World Cup venues.
- Toronto activated a Heat Relief Strategy and several stadiums with retractable roofs and air conditioning can shelter attendees from the worst conditions.
- FIFA’s mandatory three‑minute hydration breaks give players on‑pitch relief, but health officials say fans, volunteers and workers in fan zones and transport routes face the greatest exposure.
- Medical experts urge early hydration, shade and ready access to cooling stations because alcohol, certain medications and prolonged outdoor exposure raise the risk of heat illness, and analysts warn climate trends make such events more likely to face extreme heat in the future.