Vehicles Navigate Through Flooded Streets in Hanover, Pennsylvania

Slow-moving thunderstorms caused flash flooding in south-central Pennsylvania on Thursday, June 10, leading to dangerous road conditions.

This footage shared by meteorologist Sean McFadden shows vehicles driving through floodwaters in the town of Hanover.

On Thursday, the National Weather Service issued a flash flood watch, in effect until midnight, as storms were expected to bring additional heavy rainfall. Credit: Sean McFadden via Storyful