A gripping heat dome over the central and western United States will drive extreme temperatures through Monday, exposing a significant share of the population to high heat.
The deepest dome is anchoring over the Rockies and Plains, while heat advisories persist for portions of southern Colorado and several Midwestern states.
Thunderstorms may pop up in scattered areas but will offer scant relief from the sweltering heat.
Forecasters warn the dome's intensity will stall cool fronts and push record-breaking conditions right through next week.
Residents are urged to drink plenty of water, limit outdoor strenuous work during peak hours, and check on neighbors as the stretch of sizzling heat spreads wider parts of the central half.