Updates: Storms nearing Beltway, and likely to affect MLB All-Star Game.
9:35 p.m. – Storms reach Potomac and Reston, headed inside Beltway before 10 p.m.
The line of storm stretches from Olney to Potomac to Reston to Centreville and is just minutes away from moving inside the Beltway. They’re likely to hit Nationals Park not longer after 10 p.m.
The good news is that they are moving fast, around 30 mph. As the line of storms is skinny, they should move in and out in 30 minutes or less.
9:15 p.m. – Storms into Montgomery and eastern Loudoun County, aimed at District
The storms approaching the Beltway from the northwest are no longer considered severe, but continue to hold together as they progress southeast. They stretch from near Eldersburg in Carroll County through western Howard and northern Montgomery counties into eastern Loudoun County around Sterling.
Moving at about 30 mph, they should be knocking on the door of the Beltway by 10 p.m. and could affect the All-Star game at Nationals Park starting between 10 and 10:30 p.m. Downpours and some lightning are possible.
https://www.washingtonpost.com/news/capital-weather-gang/wp/2018/07/17/pm-update-afternoon-showers-and-storms-dwindle-following-record-d-c-rain-but-a-few-more-are-possible-this-evening/?noredirect=on&utm_term=.39bbf9cddded
= new reply since forum marked as read
The signs people were holding up were flapping around all over.
Lucky son in law! 
