Two massive storm systems washed through the D.C. region causing significant flooding. Flash flooding overtook cars, stranded drivers and poured into low-lying buildings. WTOP’s John Domen went to Riverdale, Maryland and talked to a business owner about the flood. And the mantra “Turn Around Don’t Drown” is good as gold, but WTOP’s Dave Dildine gives additional flood safety advice as it’s sometimes impossible to turn around.