A tightening heat dome over the nation's heartland United States will drive extreme temperatures through Monday, exposing a large share of the population to high heat.
The heaviest dome is taking shape over the Rockies and Plains, while heat advisories continue for portions of southern Colorado and several Midwestern states.
Thunderstorms may spark up in scattered areas but will provide minimal relief from the oppressive heat.
Forecasters warn the dome's intensity will delay cool fronts and extend record-breaking conditions deep into next week.
Residents are urged to drink plenty of water, limit outdoor exposure during peak hours, and look in on neighbors as the stretch of searing heat spreads across the nation's midsection.