Sizzling US temperatures put more than 100 million people under heat alerts ABC News - Breaking News, Latest News and VideosSweltering heat wave grips central and southern US for a second straight day NBC NewsScorching US heatwave to hit 70 million people with third ‘heat dome’ in month The GuardianSunday AM forecast: Hottest Weather Still Ahead WBRZHeat dome expands across the central United States, creating dangerous conditions for millions AP News