A tightening heat dome over the mid-section United States will drive extreme temperatures through Monday, exposing a large share of the population to high heat.
The heaviest dome is setting up over the Rockies and Plains, while heat advisories persist for portions of southern Colorado and several Midwestern states.
Thunderstorms may spark up in scattered areas but will provide minimal relief from the blistering heat.
Forecasters warn the dome's intensity will hold off cool fronts and sustain record-breaking conditions well into next week.
Residents are urged to drink plenty of water, limit outdoor activity during peak hours, and look in on neighbors as the stretch of sizzling heat settles in over the nation's midsection.