A tightening heat dome over the mid-section United States will drive oppressive temperatures through Monday, exposing a large share of the population to high heat.
The heaviest dome is anchoring over the Rockies and Plains, while heat advisories continue for portions of southern Colorado and several Midwestern states.
Thunderstorms may fire up in scattered areas but will do little relief from the sweltering heat.
Forecasters warn the dome's intensity will stall cool fronts and push record-breaking conditions well into next week.
Residents are urged to stay hydrated, limit outdoor effort during peak hours, and check on neighbors as the stretch of sizzling heat spreads over the country's interior.