 Dave Dildine, WTOP traffic. 7 News First Alert. Meteorologist Steve Rudin with us on the watch for potential thunderstorms with all this heat and humidity. You got it. And a severe thunderstorm watch has now been posted until 10 o'clock this evening. I would suspect that part of it will come down before then as the line of storms moves across the metro area anywhere between 7 and 9 p.m. And once we get through the storms, things are going to quiet down. But between now and then, it's hot, it's humid. We have an excessive heat warning for the metro area in southern Maryland.