Millions face dangerous heat as heat dome sweeps east [a1ELNsyPwJc]
Americans across 30 states are on alert this holiday weekend, with temperatures that feel like triple digits. READ more from ABC News: What is a heat dome? What to know as dangerous heat wave expands east: SUBSCRIBE to GMA: SIGN UP to get the daily GMA Wake-Up Newsletter: To read the full story and others, visit FOLLOW: TikTok: Instagram: Facebook: Threads: X: Watch full episodes of GMA: Watch full episodes of GMA3: Watch full episodes of GMA First Look: