 528. Traffic and weather together on this dangerous storm afternoon. Dave Dildine's in the traffic center. Yeah, that powerful thunderstorm moving out of Loudoun County into northern Fairfax County and Montgomery County impinging on the Beltway. It's dry and slow for now on the interloop near the Legion Bridge, but not for long. Sky's getting dark. Now, in the wake of that storm in Loudoun County, a swath of significant wind damage carving through Waterford. Many roads were impassable.