 You're listening to WTOP, Washington's news, traffic, and weather station. The WTOP producer's desk is wired by IBEW Local 26, where electrical contractors come to grow. Good afternoon, I'm Kyle Cooper. I'm Anne Kramer. Jacob Kerr is our producer. Our top story this hour, today's record-breaking heat giving way to some thunderstorms in our region. Let's go live now to 7 News First Alert meteorologist, Mark Pena.