A strengthening heat dome over the central and western United States will drive dangerous temperatures through Monday, exposing a significant share of the population to high heat.
The most intense dome is anchoring 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 do little relief from the sweltering 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 effort during peak hours, and check on neighbors as the stretch of sizzling heat settles across part of the central half.