Maryland Department of Transportation cameras captured cars on I-495 westbound slowly splashing through the highway.

Major I-95 cities -- Philadelphia, Baltimore, Washington, D.C., and Richmond, Virginia -- could be impacted as heavy downpours could bring 2-3 inches of rainfall per hour over already saturated soils, which could easily cause flash flooding.

NWS issues flood watch and outlook for storms in Washington D.C., with heavy rainfall and severe weather potential.

"Pine Valley is one of our big concerns with the burn scar from the forest fire," said Washington County Emergency Services Director Jason Whipple. "And that tends to be a problematic area because of the runoff that comes down there and the debris that comes with it.

Forecasters warned more rain and flash flood risk is expected on July 15 after storms flooded out roads the day before.

Flood Watch issued by NWS Baltimore MD/Washington due to excessive rainfall, with potential flash flooding in DC, MD, VA, and WV. Heavy showers expected; weekly forecast includes thunderstorms and high humidity.

The Trump administration has changed course and is moving ahead with work to develop a new database that would provide Americans with precise estimates of their flash flood risk in a warming world.

The catastrophic Texas flash flood along the Guadalupe River is simply heartbreaking. What can be learned and applied here in Western Washington?

A day ago, a quiet, unnamed creek carried a whole RV camper underneath the western bridge into New Pekin, Indiana on Thursday. A nearby cornfield on Shorts Corner Road, fifty feet inward, was flattened by water that rushed over the asphalt.