A dangerous heat wave continues across a large part of the United States, with more than 130 million people under extreme heat watches and warnings from South Dakota to Florida.

Residents in the Southeast U.S. are no strangers to hot weather in the summertime. But the sweltering heat this week set at least one record, and forecasters urged residents to limit being outside if possible and to hydrate.

More than 11 million people across southern Georgia and most of Florida were under a rare “extreme” heat warning on Tuesday.