July 21, 2013 9:14 am What is Heat Lightning? no description Local 3:45 Doug's summer forecast 2:25 Why does the grass at Nationals Park appear in multiple shades of green? 2:00 Man rescued from car in high water in Vienna 2:52 When is the next solar eclipse after 2024 in the DMV? 3:11 What to expect from the solar eclipse in the DC area