Over 50 million Americans in the West are under dangerous heat alerts. Extreme heat warnings are in effect for major cities like Seattle, Portland, Los Angeles, Las Vegas, and Phoenix. Triple-digit temperatures are expected, with daily record highs challenged. The heat is fueling wildfires and monsoon thunderstorms, causing flash flood risks. In the Atlantic, Tropical Storm Fernand formed, while another tropical wave poses a low chance of development. The East Coast experiences lingering rough surf and rip currents from Hurricane Erin.

Prepared by Olivia Bennett and reviewed by editorial team.