"Heat Dome to Bring Triple-Digit Temperatures and Excessive Heat Warnings to the West"
A heat dome is set to bring extreme, triple-digit temperatures to the Southwest starting Tuesday, affecting over 25 million Americans under a heat alert. Central California, southern Nevada, and western Arizona will experience temperatures 20 degrees above normal, with Las Vegas and Phoenix expected to hit 111 degrees by Wednesday. The heat dome is expected to last until Thursday, with severe health impacts anticipated. Residents are advised to stay hydrated and avoid direct sunlight.