Most of America's Lower 48 states are about to swelter under an unusually large, strong and long-lasting heat dome.
Extreme heat is considered the deadliest weather-related hazard in the U.S., according to the Fifth National Climate Assessment. About 2,000 Americans die each year on average from extreme heat, according to the CDC.
An intense and nearly historic weather pattern is cooking much of America in a dangerous heat dome this week with triple-digit heat that hasn't been seen in some places in more than a decade.
Here is what to watch out for if dehydration hits, as well as the best things to drink and eat to keep your body nourished.
Heat is the number one weather killer in the United States.
The Bay Area is getting a taste of summer-like heat Friday. Here's how some residents are beating the heat.