Millions in Eastern US Brace for Severe Thunderstorm Threat

Millions of people in the eastern US are under threat of severe thunderstorms, with strong winds, large hail, and isolated tornadoes possible. Flash flooding and frequent lightning are also concerns. Meanwhile, extreme heat continues to affect the South, with heat alerts issued for over 95 million Americans. Record highs are expected to be challenged in parts of the West Coast, with triple-digit temperatures forecasted.